You are using the Configuration Wizard to create a new domain that will consist of a cluster of a of
three managed servers along with an instance of WebLogic server acting as HIPT proxy to
distribute traffic to the cluster.
Which three steps should you perform with the Configuration Wizard? Create one Cluster. Install Oracle HTTP Server. Create one Coherence server. Create four managed servers. Assign three servers to a cluster. Specify a proxy port tor the administration server.
You decide to use a database to store WebLogic Server transaction logs for a managed server.
Which two steps are required to configure this? Under the managed server's Services configuration select “JDBC” as the type for the transaction
log store. Under the managed server's Services configuration, select "Disable the Default Store Create a non XA data source in the domain for the database transaction log. Create an XA data source in the domain for the database transaction log.
Which session persistence type is invalid? Async_replicated async_jdbc replicated async_memory cookie file replicated_if_clustered.
An administrate in your organization says you do not need to back up the domain files on a
machine which only managed servers run.
Select the best explanation for this statement. This Is true because the domain files can be re-created with the pack and unpack utilities. This is true (with an exception) because the domain files can be re-created with the pack and
unpack utilities. The exception is if your security realm uses the embedded ldap system. Which is
not included in the JAR file created by the pack utility. This is true (with an exception) because the domain files can be re-created with the pack and
unpack utilities. The exception is for applications that are deployed to the managed server. Those
files are not included in the JAR file created by the pack utility. If you back those up manually, then
pack and unpack can be used. This is not true. You need to back up the domain files on a machine on which only managed
servers run by using operating system commands (such as tar or zip).
Which statement is true about stopping Node Manager? If you stop Node Manager, the managed servers it started will also stop. You may kill the Node Manager process by using operating system commands. Using the stopNodeManager.sh script so Node Manager stops gradually. Using the administration console, select the appropriate machine and click stop The administration server goes into ADMIN mode if it can no longer Communicate with Node
Manager. The managed servers that Nod Manager started go into ADMIN mode if they can no longer
communicate with Node Manager.
You configure a data source with a non XA driver because your (non-Oracle) database does not
provide XA drivers.
The data source will sometimes participate in global transactions with an EJB, so as you configure
the data source you select “Supports Global Transactions” and One-phase commit.
Why is this configuration wrong? You must choose an XA driver when a data source participates In global transactions. "One' Phase Commit" always returns "ready" during phase one of the two-phase commit process’
so it is possible you will have heuristic errors in the database. "One-Phase Commit" processes this data source last In the global transactions, if the EJB must go
last, you cannot use this configuration. "One-Phase Commit" only allows this data source to participate in global transaction, so you
cannot have a global transaction that includes an EJB.
When creating a dynamic cluster, you have multiple options concerning how dynamic servers are
distributed across machines in your domain. Identify three supported configurations. Use a single machine. Use all machines in a subnet. Use all machines in the domain. Use all percentage of machines in the domain. Use all machines whose names match an expression.
Which action should you take to automatically back up the domain configuration when anyone
Activates a configuration change? USE the backup='true' parameter of the ad activate () command In WLST. The administration console , select " Follow Configuration changes" In the Shared preferences for
the console. In the administration console, select "Configuration Archive Enabled" under the general
configuration of the domain. Enabling automatic domain configuration creates backups of the configuration during server boot
not at each activation.
As the technical lead for your project, you have been asked to recommend a new solution to
handle frequently increasing loads on your applications. The Weblogic 12.1.2 domain currently
runs with two clusters of three servers with request being filtered and passed by a proxy server
that users the round –robin algorithm.
However, the load sometimes exceeds the maximum capacity of all these servers combined but
your domain lacks in scalability.
What is the best implementation solution? Add a third cluster and spread existing server instances across the clusters. Modify the proxy server load balancing algorithm to weight based. Configure dynamic clusters and specify the number of server instances you anticipate at needing
at peak load. Tune work managers to optimize work. Replace the software load balancer with a hardware load balancer.
All administrators that deal with the production domain in your organization are extremely
experienced. As the lead administrator, you have been asked to change the administration
console preferences for all administrators so that inline help no longer displays, since no one
needs It.
Select the true statement about this scenario. There is nothing you can do since inline help cannot be disabled. There is nothing you can do for all users, since disabling inline help must be done per user. Log into the administration console and disable Inline help under "help." Access WLST, connect to the domain's admin server, and use the command enable inline help
(false).
You plan to Install WeblLogic Server by using the generic JAR installer in silent mode.
What are two ways to create the required response file? First install or deinstall graphically. There is an option to save a response file. Use the sample response file in the installation documentation as a template. First run the Repository creation utility. There is an option to save a response file. The response file is not required. You can answer questions interactively at the command line. The genetic JAR installer does not have a silent mode .so you do not need a response file when
using this installer.
Your domain consists of 30 servers. You are using the Administration Console.
Which is the quickest way to identify the servers that are in a Failed health state? Use the Filter button from the domain’s Monitoring >Health tab. Use the Monitoring >Health tab for each server in the domain. Write a custom WLST script to print out failed server. Capture a diagnostic snapshot.
You use the Java –based Node Manager to start your managed servers. You want Node Manager
to:
• Stop servers by using your custom stop script: mystopit.sh
• Restart servers when the hardware cases
• Use SSL communication
• Check server heath once per second
Below are portions of the nodemanager.properties file. Select the one that configures Node
manager as described. StopScriptEnabled=true
StopScriptName=mystopit.sh
CrashRestartEnabled=true
SecureListener=true
StateCheckInterval=1 StopScriptEnabled=true
StopScriptName=mystopit.sh
CrashRecoveryEnabled=true
SecureListener=SSL
StateCheckInterval=1000 StopScriptEnabled=true
StopScriptName=mystopit.sh
CrashRestartEnabled=true
SecureListener=true
StateCheckInterval=1000 StopScript=true
StopScriptName=mystopit.sh
CrashRestartEnabled=true
SecureListener=true
StateCheckInterval=1000 StopScriptEnabled=true
StopScriptName=mystopit.sh
CrashRecoveryEnabled=true
SecureListener=true
StateCheckInterval=1000.
Which three statements are true about WebLogic clusters? Clusters provide clients with transparent failover. EJB applications can be targeted to entire cluster. All cluster members must bind to the same port number. Cluster members replicate application data by using heartbeats. Cluster members can be associated with one or more domains. Web applications require a proxy in order to be used in a cluster.
You are using WebLogic Server Diagnostic Framework (WLDF) Instrumentation in a system
diagnostic module. The Dye Injection monitor is enabled. You know the diagnostic context ID of
the request you are Interested in that was processed by several. You are looking through the
messages in the server log file of several.
Which statement is true? You need to look at the Events Data Archive. Server log files do not contain WL DF context IDs You need to look at the Harvested Data Archive. Server log files do not contain WL DF context IDs You need to look at the domain log file. Only the domain log file contains WL DF context IDs. You can search the server log file for the context ID. Any message that was written to the log IDs
during that request will contain the context ID. You need to translate the context ID Into the corresponding transaction ID, which is the only ID in
server log file entries.
You are deploying a web application called inventory, war. It has been installed and has the state
of “prepared”. It is targeted to the Managed server named managed1.The web application’ context
root is /inventory and the starting page is index .jap.
However ,you want to test the application before allowing end users access to it. In the
administration console, you select inventory. war, and then select Start and “servicing only
administration request.”
In you web browser, you need to enter a host and port followed by /inventory /index.jap.
Which host and port would you use? managed1 host and port Administration Serve host and port managed1 host and Administration port Administration server host and Administration port.
You are creating and configuring a cluster by using the administration console. Which two
statements are true? All servers that will be part of the cluster must be created before the cluster is created. You must pick the cluster messaging mode. Even though you create a non dynamic cluster, you can change it to a dynamic cluster later. Once the cluster is created, you cannot change its messaging mode. The administration console does not provide a way to manually migrate singleton services. It must
be set up to be done automatically or by using WLST.
One Managed Server that is part of a large domain throws java.lang.out of Memory error (OOM)
occasionally.
You have been monitoring this server with the jvisualVM tool but that didn’t help because the issue
occurs infrequently and not a specific scenario. So you decided to force the server to dump the
heap memory as soon as an OOM gets thrown in order to analyze the dump file later.
How do you modify the Java HotSpot Startup command to enable this feature and save the dump
in the directory D:\hprof-dumps\? Add –xx:+DumpHeaponoutofmemory-xx:Dumppath=D:\hprof. Add-xx:+HeapDumponoutofmemoryError-xx:Heapdumppath=D:\hprof-dumps. Add-xx:+DumpHeaponoutofmemoryError-xx:Heappath=D:\hprof-dump. Add-xx:+HeapdumponoutofMemory-xx:HeapDumppath=D:\hprof-dumps. Add-xx:+HeapDumponoutofMemoryError-xx:Dumppath=D\hprof-dumps. Add-xx:+HeapDumponoutofMemoryExecepttion-xx:HeapDumppath=D:\hprof-dumps.
You are using the Administration console to monitor a resource.
Which three techniques can you use to customize the monitoring output? Sort the rows by a specific column. Limit the number of rows displayed. Change the order of the displayed columns. Views the rows from a specific time range. Combine (add) multiple columns together.
You are working for a software company that mostly dealt with creating and reusing C++ and.
NET objects. There are many COM (Component Object Model) components that have been
created over time that provide standardized functionalities. Recently, platform independence has
become a major consideration for your organization and you have deployed WebLogic
server12c.But you would like to make use of some of your prebuilt COM objects for request
processing. You need an interim solution before implementing web services.
Which artifact within WebLogic server helps you achieve your objective? Messaging Bridge IDL Mapper jCOM XML Registry COM2 Java.
Your server includes an application that users a generic JDBC data source to connect to a
database. However, the network connection between the server and the database is not 100%
reliable.
Identify two data source attributes that, if set properly can help avoid situations in which the
application fails due to a failed JDBC connection. Statement Cache Type Pool Reserve Mode Test Table Name Test Connection Mode Test Connections on Reserve.
Which three tasks can be performed by the Node Manager? Start a server Define a new server Host the Node Manager console. Automatically restart a failed server. Kill a failed application on a server. Kill a server process that did not shut down property.
You created a shutdown class Myclass that you would like to execute just before server shutdown.
Which statement is true regarding Myclass? Myclass can be specified in the Configuration Wizard as a shutdown class. Myclass must be available in the WebLogic server’s classpath. Myclass can be targeted to only one server instance. Myclass must not have a main method.
Consider an existing nondynamic cluster that is currently hosting many libraries, applications, and
data sources. You need to scale out this cluster to include a new server. You provision the domain
on new machines.
What are the two ways to create this new server in the domain configuration? Use the Configuration Wizard to add a new server to the cluster. Use pack and unpack to copy an existing server in the cluster. Use the Administration Console to add a new network channel to the cluster. Use the Administration Console to clone an existing server in the cluster.
You need to take a web application offline.
Which three options are supported In WebLogic Server when you stop a running application? Terminate HTTP sessions immediately. Terminate HTTP sessions after three minutes . Move HTTP sessions to a database. Wait for HTTP sessions to time out. Allow new requests only through the administration port. Move in –progress requests to another server in the cluster.
You use a web browser to log in to a application that is deployed to WebLogic server. When you
click a link named “publish” on the site, an Access Denied” message appears.
Which two statements are true about this server’s security configuration? The application is not associated with any security roles. A security realms is not configured in this domain. Your user account has expired. Your user account exists in an authentication provider. A security policy is attached to the “publish” link URL.
As part of troubleshooting an application, you need to analyze the HTTP session count and the
server heap size over the past six hours. You are using the Administration console. You want to
view both metrics together and correlate their values.
Which three steps should you take in the Administration console? Create a custom view. Start the JVM Runtime view. Drag each metric onto two charts in the same view. Access the Monitoring Dashboard. Click the application’s Monitoring tab.
An application fails. The exception Indicates that the JDEM data source cannot be found.
Identify two possible steps that you can perform to verify the data source’s availability. Launch the JDBC Diagnostics utility. Verify the Dependencies attribute of the data source. View the target server’s JNDI tree in the console. Verify that the application and data source have the same target.
Which three statements are true about the default behavior of WebLogic server proxy plug-ins? The proxy will pin a client to a specific server if a session cookie is created. The proxy fails over to another server if a connection or request times out. The proxy distributes requests to cluster members based on their CPU usage. The proxy dynamically learns the latest locations of cluster members. The proxy always uses SSL, regardless of the client’s protocol. The proxy replicates session data to its backup proxy.
Each domain has a directory called servers that contains subdirectories for each server in the
domain. Your domain has a managed server managed managed1.
When will the managed1 directory be created? When the managed1 server is defined in the Configuration WIZARD When the domain is created When the Administration server comes up for the first time When the managed1 server comes up for the first time.
Which two metrics are used to monitor and troubleshoot unicast communication in a cluster? Groups Master Backup server Session Replicas Local Group Leader.
The startup of a Weblogic Server instance fails with the error message:
java.net.BindExcepttion:Address already in use
Which two methods help identify what is currently listening at the port and the Ip this server is
configured to be bound to? The pmap command lists all processes running with their associated port member. The UNIX 1sof command can report information on the process that is listening at a particular IP
and port. netstat, which is available on Windows and Linux/UNIX, can report on the process bound to this IP
and port. Pstat will report detailed runtime statistics on any process currently listening at this IP and port. The Linux port watching tool port info can raise an alert anytime a process attempts. succeeds, or
fails to connect to a specific IP and port. It can also be used to identify if a port is being used by a
java process.
Consider a domain that includes a dynamic cluster of three servers. Your network administrator
requires all servers to bind the specific domain name mycompany.com.
Which Administration console action implements this requirement? Use a $(macro)in the server templates listen address. Assign each dynamic server a separate machine. Create multiple server templates for the cluster. Update the cluster’s listen address prefix.
You see a script called start WebLogic.sh(.cmd in Windows) in the root folder of your domain.
What does this script do? Starts a machine Starts Node Manager Starts a Managed server Calls the startwebLogic.sh script in the domain’s bin directory Calls the startManagedWebLogic.sh script in the domains bin directory.
A WebLogic Server instance can have multiple network channels defined for it.
Each channel for the server must have a unique combination of two elements. Identify these two
elements. Tunneling enabled Listen address Listen port Outbound enabled Channel weight.
Identify two reasons for defining machines and assigning servers to them in WebLogic servers. A machine can be the proxy to a cluster. A machine definition is required to configured figure the Node Manager. To reference an instance of WebLogic Server, you must know its machine and port. A machine is a required organizational unit. A domain contains machines and machines contain
servers. WebLogic Server users server machine assignments to help it choose servers in a cluster on
which to replicate session state. A machine’s Cluster Weight attribute may be used by load balancers to help them determine how
often to send requests to servers assigned to that machine.
You want to configure WebLogic server transactions to be recoverable when a nonclustered
managed server crashes, even if that crash is caused by an unrecoverable hardware failure. You
want to run the managed server on different hardware, and have it recover the transactions that
were in-progress at the time of the crash.
You also want to use the default store for transaction logs.
Which statement is true? This scenario is not possible .You must use the JDBC store to recover transactions from a
crashed server. This scenario is not possible. You must use clustered managed servers to recover transactions
from a crashed server. This scenario is common , and so the default configuration of the default store works. Before the crash ,you need to update the path to the default store for the managed server. The
path should be to some shared storage location. After the crash, obtain a copy of the managed server’s default store from the administration server.
Move it to the same relative location on the new hardware before starting the managed server
there.
To support a growing application workload, you need to scale out an existing (nondynamic)
cluster. You power up the new hardware and install WebLogic server.
Which two changes are mandatory for you to make to your domain configuration? Create a new deployment plan. Create a new machine. Create a new server. Add a server to the cluster. Add a server to the machine. Add the cluster to the machine.
Select the two true statements about upgrading WebLogic server to version 12c (12.12). To use the Reconfiguration Wizard, your current WebLogic server version must be 9.0 or higher. The Domain Upgrade Wizard is no longer available in 12.1.2. After running the wizard to update your domain ,you must reapply your start script customizations. You need to update the domain’s administration server files.
A WebLogic server (WLS) domain was recently updated from WLS 10.3.6 to WLS 12.12.
What is the mode of operation of the Node Manager after the update and what is needed to keep
the same behavior as in WLS 10.3.6? Nothing, Node Manager runs and behaves the same on both WLS versions Node Manager runs in “per machine” mode and nothing is needed to keep the same behavior. Node manager runs in “per domain” mode and requires manual steps to return to the “per
machine” mode, used in WLS10.3.6. Node Manager mode of operating and behavior can be selected in reconfiguration Wizard.
Which three statements about patching Web Logic server (WLS) by using Opatch are true? Each patch comes with a “read me” file containing installation instructions. You can use Opatch to see which patches are currently applied to WebLogic server. Opatch is a GUI tool and requires the operating system to have a window manager. Opatch requires a JDK to run. After installing WLS, you download the Opath utility from Oracle support. Each patch ZIP file comes with the Opatch utility.
You are carrying out the RDBMS Security Store configuration using the configuration Wizard
Which three actions can you perform with the Configuration Wizard during the process? Create tables in the data store. Execute SQL scripts in WebLogic server’s server /1ib directory. Populate the database tables with external LDAP users. Test the connection to a back –end database. Allocate tablespace for the data store.
GridLink data sources are designed for use with an Oracle RAC database. By using the Fast
Connection Failover (FCF) pattern, GridLink data sources can quickly react when a RAC node
goes down.
Which two statements are true? The Oracle Notification service is used to notify the data source of changes to RAC nodes. The reaction is quick, because in using FCF all network timeouts are set very low. FCF is faster because it polls and tests connection, freeing the data source from these tasks. FCF requires the use and configuration of a database server in the GridLink data source. You can use any Oracle Thin database driver with a GridLink data source.
You use the administration console to start a managed server. Select the three statements that
must be true. In the domain configuration, the managed server is assigned to a machine. The Node Manager process is running on the administration server's machine. The Node Manager process is running on the managed server’s machine. The administration server uses one way SSL to communicate with the Node Manager. In the domain configuration, the Node Manager has been configured for the machine. You have configured the Java based Node Manager. The administration console cannot
communicate with the script - based Node Manager.
Which two statements are true about WebLogic data sources? Data sources are targeted to a domain. Data sources are bound in the JNDI tree of a server. Data sources are based on the JMS specification. A data source contains a connection pool.
A WebLogic server domain contains a dynamic cluster called “cluster1”.The cluster “cluster”1 has
two dynamic managed servers “server1” and “server2”. There is a need to view the inherited
attribute values for “server2”.
How do you view all attributes of “server2”.including those inherited from the server template? Use WebLogic Administration console >”server2” link. Use java weblogic.Deployer. You cannot, because attribute values are not inherited. Use WLST.
A web application is configured for in-memory replication and is deployed to a cluster. This cluster
is distributed across two buildings on a university campus. For performance reasons, you require
that session replication occur within the building whenever possible.
How do you implement this requirement? Disable the dynamic server list in the proxy plug –in. Configure the cluster to use multicast communication. Configure the application’s cookies parameters. Configure each server’s replication group.
You need to configure WebLogic Server to satisfy the needs of your new application that will
update more than one data set on several databases in the same transaction.
All updates will be committed or rolled back at the end of the transaction.
Which setting should be considered? Enable use xa Data source interface in the transaction properties of each data source. WebLogic Server supports distributed transactions by default, so on specific settings are required. Split the transaction into multiple local transactions. Configure your data sources with the available XA-compliant driver for your DBMS. Enable Two-phase commit in each data source.
During a performance test, a server’s log includes several out of memory error messages. You are
using the Administration console.
How can you verify the amount of available heap in the server? Click the server ‘s Debug > Heap tab. Click the server’s Debug >Health tab. Click the server’s Monitoring >Health tab. Click the server’s Monitoring > Threads tab. Click the server ‘s Monitoring >performance tab.
You domain’s security realm has two authentication provides :1dap1 and 1dap2.
Consider these requirements:
• If authentication succeeds with 1dap1, then skip 1dap2.
• If authentication fails with 1dap1, then authentication must succeed with 1dap2.
Which control flag should you use for 1dap1? Required Requisite Sufficient Optional.
You are in the process of planning a deployment in which a single WebLogic cluster will host a
web application. There are several options to consider.
Which is not a valid decision? Proxy plug-in or hardware load balancer Configured or dynamic cluster Replicated or persistent HTTP sessions Unicast or multicast communication Single or multiple domains.
You shut down a managed server by using the administration console.
Which statement is always true? The managed server was running on the same machine as the administration server. Node Manager is configured properly and running on the managed server’s machine. You can choose to shut down the server right away or after it completes its work. The administration console calls WLST to accomplish the shutdown.
A new machine was given to your department. This machine has two WebLogic server12.1.2
installation, each with different inventories.
Which command or tool do you determine the differences in products installed in each of the
inventories? None, inventories are used by Oracle databases only. ORACLE_HOME/wiserver/bin/compareInventory-sh-oracle-home1 < oracle-home1 location > -
oracle-home2 < oracle-home2 location >. The Oracle Inventory Viewer utility ORACLE _HOME2 < oracle _home2 location >.
You are creating a domain by using the configuration Wizard. In the wizard, you select to configure
Node Manager. Under “Node Manager Type, you select “Manual Node Manager setup”.
What does this mean? You are using the configuration Wizard to configure a script –based Node Manager. The configuration Wizard prompts you to change the default Node Manager configuration values. The configuration Wizard bypasses all Node Manager configuration. You are using the configuration Wizard to configure a Java –based Node Manager. You must manually copy the Node Manager files generated by the configuration Wizard into Node
Manager home.
You need to monitor the HTTP session count for a running web application.
Identify three ways to perform this monitoring. Run the jstat tool in your JDK. Write and run a custom WLST script. Use the application’s Monitoring tab in the Administration console . Use the Monitoring Dashboard in the Administration console. Use the cloud control page in the Administration console.
You create a new Work Manager to control how server threads are allocated to an application’s
increasing requests . You want to further configure the criteria of the Work manager by using a
Request class.
Identify three valid Request classes that you can to a work manager. Uniform Distribution Request class Response Time request class Max Throughput Request class Fair share Request class Context Request class.
You want to start the managed server called managed1 in “Standby” mode, to keep it as a “hot
backup”. Which statement about your domain configuration must be true? The server managed1 must be of a cluster. Your domain has an administration port. Only the admin server can start in “standby” mode. There is no such thing as “standby” mode.
You require high availability for HTTP sessions in a web application. In addition, you have the
following constraints:
• There is little free memory on the machines hosting the cluster.
• HA must be guaranteed even when multiple machines fall simultaneously.
• You are not allowed to update the production databases schema.
Which is the best session persistence option? Database persistence File persistence In-memory replication Whole –server migration.
Examine the partial server log entry shown below:
#### <May 19,2013 8:28:01 PM EDT > <warning> <JDBC > <host01> <managed1>
<<WLS kernel >> < > < > < 1369013281005 > <BEA-001129> <Received exception while creating
connection for pool -oracleDS1->
Which two statements are true? The server’s name is oracleDS1. The server’s machine name is host01. The transaction ID is 001129. The JDBC subsystem generated the message. The user’s identity is managed1. The severity level of the message is Critical.
You are responsible for configure a WebLogic domain to support an order processing application.
This application will communicate with multiple JDBBC data sources to fulfill each customer order.
To maintain data integrity across these databases, work will be performed within a global
transaction. However, you have learned that one of the data sources in the transaction does not
have an XA driver.
Which option should you select on this non-XA data source to ensure that orders are still
processed as global transactions? Ignore Heuristics Pinned to Thread One phase commit Logging connections on Resource Test connection on Reserve.
Which machines can be configured by using the configuration Wizard? machine and Windows machine administration machine and managed machine machine and UNIX machine stand –alone machine and cluster machine RDBMS machine and LDAP machine.
Before you view JVM performance information in the administration console, you want to request
that the JVM do a garbage collection.
How can you do this in the admin console? You cannot do this from the admin console. You must use WLST or a JVM command- line tool. In the Monitoring > Performance tab, click Dump thread Stacks. In the Monitoring > Threads tab, click Dump thread Stacks, In the Monitoring - Performance tab, click Garbage Collect. In the Monitoring > Performance tab, click GC.
In the certification matrix for your version of WebLogic Server , you find the row for your database
and its version. In that row, in the “type of database use” column, it says “application data access
only”.
Your database cannot be used __________. By the administration server For internal data storage by WebLogic server By a multidata source In a production environment By an Enterprise JavaBean.
Which three statements are true about the administration console? The administration console can be disabled. The context path of the administration console may be changed. If a domain is in Development Mode the administration console no longer requires an
administration –level user when logging in. If a domain is in production Mode, access to the administration console must be made through a
secure port. If the domain’s Administration port is enabled, access to the administration console must be made
only through that port.
You are setting up a GridLink Datasource.
What function will help you to seamlessly connect to a dynamic oracle RAC installation Simple Connection Access Node Single Connection Anonymous Network Simple Client Address Name Single Client Access name.
View the following file excerpt, which configures HTTP session replication:
< session-descriptor >
< persistent-store-type > replicated </persistent-store-type >
</session-descriptor >
From which file is this except taken? Weblogic –application.xm1 Weblogic-xm1 Session-xm1 Config-xm1 Web.xm1.
You set up two network channels for server –to-server communication. You want channel x to be
used more than channel Y, so you give channel x a higher channel Weight. You want to see if
indeed channel X is used more.
You use the administration console and look at both channels under each one’s Monitoring tab.
What scenario would best assure you that channel x has an overall higher connection rate? Channel X Bytes Sent is higher. Channel X Bytes Received is higher. Channel X Accept Count is higher. Channel X Connections is higher.
Consider a domain with an existing JDBC data source, which connects to an Oracle database.
Your database administrator requests that the JDBC connections to this database now specify a
different username.
Which data source attribute would you modify to implement this requirement? Properties Credentials Username Login URL.
The Administration Server of a domain falls due to a hardware failure. The hardware is beyond
repair.
Before the failure you prepared a “backup admin server”. You go through your planned recovery
process and are successful. The Administration Server is now running on different hardware. The
managed servers of the domain automatically reconnect to the admin server.
Select the two statements that are true. Files of deployed applications are available to the backup admin server from the same relative
location as they were to the original admin server. At the time of the failure ,the backup admin server was running in “Standby” mode on different
hardware in the same network. When the admin server failed, you must have shut down and restarted the managed servers,
otherwise they could not have reconnected to the failed admin server. The backup admin server is any one of the running managed servers. You select one of the
managed servers, stop it, set its “administration” flag, and restart it as the admin server of the
domain. The backup admin server must be running at the same DNS name or IP address as the original.
You use the Administration console to modify the domain’s security realm. After deleting the
default authentication provider, you add a single authentication provider for iplanet LDAP. You
then try to reboot your servers with the weblogic user but they all fail to start due to authentication
errors.
Identify two possible causes. The weblogic user does not exist in iplanet. The Administrators group does not exist in iplanet. A domain must include the default authentication provider. Iplanet is not a supported LDAP implementation. LDAP providers cannot be included in the default security realm.
You create a new Managed Server in your domain by using the administration console. You give it
the listen address of 192.0.2.0 and the listen port of 7100.You save and activate the changes.
You use the domain start script to start the new server. It fails, One of the messages in the window
in which you can the script is:
Server failed to bind to any unable port.
You investigate and see that another process is running on 192.0.2.0 on port 7100.You also find
many unused ports at that IP address.
Which two statements are true? It is not an instance of WebLogic Server from this domain running at 192.0.2.0:7100.The
administration console does not allow you to create a server at the same listen address and port
as one already configuration in the domain. It is an instance of WebLogic Server running at 192.0.2.0:7100. Other processes do not interfere
with WebLogic Server. Changes the port number to an unused one to resolve this issue. It cannot be the administration server running at 192.0.2.:7100, because admin servers run on port
7001. Because this Managed Server has never been started, it does not have a local copy of the
configuration. If it did, by using Managed Server Independence, it would be able to switch to an
unused port of it s configured port was busy. The port number can stay 7100 if this machine has another IP address and the port is unused at
that address.
Which two statements are true about multicast communication within a cluster? Multicast can be used for cluster heartbeat messages. Multicast is used to replicate session state between servers. Multiple cluster can share the same multicast address and port. You may disable multicast on individual cluster members. Multicast traffic is often limited to a single subnet.
Which three runtime metrics can you monitor or collect from WebLogic Server applications? Average execution time for a web application URL. Number or transaction rollbacks for a web server Maximum HTTP session timeout for a web application Number of current sessions for an EJB Numbers of faults /errors for a web service Number of instances of an EJB.
You zipped up the domain’s config directory on the administration server’s machine before making
some major configuration changes. You wait to activate after all the changes have been saved.
After your changes are in, hinges start failing badly. You want to go back to the old configuration.
What is the best course of action? Undo the changes you made manually by using the administration console or WLST. 1. Stop the administration server. 2. Replace the config directory on the administration server’s
machine with your backup. 3. Restart the administration server.4. Stop the managed servers on
each machine.5. Replace the config directory on the machine with your backup.6. Restart the
managed servers on the machine. 1. Stop the administration server.2. Extract only the config.xm1 file from the zip file.3. Overwrite
config.xm1 on the administration server’s machine with this extracted file.4. Restart the
administration server. 1. Stop the administration server.2. Replace the config directory on the administration server’s
machine with your backup.3. Restart the administration server.
Several applications are deployed to a managed server. You want to compare the number of
completed requests for all of these applications. What is the quickest wat to accomplish this? Launch WLST and run the viewAppRuntimes ( ) command. Access the Monitoring Dashboard. Click the Application Work Managers view for the managed
server. Access the Administration Console. Click Monitoring > Work Manager tab for each application. Access the Administration Console. Click the Deployments page. Run weblogic.Deployer with the –status parameter.
An online store web application is deployed to a WebLogic server cluster. User of the application
frequently complain that the information in their shopping cart vanishes before they are able to
complete an order. You use the Administration Console to monitor the web application.
Which metric is the most relevant to this problem? Average execution time Session timeout Current session count High session count Cookie domain.
You are troubleshooting why transactions are not being committed. After investigation, you realize
that these transactions have enough time during the first phase of the two –phase commit, but not
enough time during the second phase. Therefore, rather than committing, they are timing out and
are being rolled back.
Which Java Transaction API (JTA) attribute needs a larger value? Timeout seconds Abandon Timeout seconds Before completion Iteration Limit Checkpoint Interval seconds Unregister Resource Grace period.
Consider an IT infrastructure comprising several web and EJB applications. Each application is
expected to handle significantly different workloads and, therefore, has different resource and
scalability requirements.
Which is the best solution? Configure a separate proxy for each application Configure a dedicated WebLogic Server for each application Configure a separate node manager for each application Configure a separate cluster for each application.
You are troubleshooting Java Transaction API (JTA) transactions.
The WebLogic Server extension to JTA provides which optional transaction attribute to make
troubleshooting easier? a name an ID the status of “marked for rollback” a status.
You want to restart a failed stand-alone managed server. Select the two true statements. Before restarting a failed managed server you must always first use operating system commands
to kill its old process. The managed server can automatically be restarted on new hardware if server migration has been
properly set up. If the managed server was started by Node Manager, then Node Manager can be set to
automatically restart the managed server. If the managed server was started by a script, run the script again.
Which WebLogic Server tool is used to create managed server templates? unpack Configuration Wizard Administration Console WebLogic Scripting Tool (WLST) appc pack.
In memory replication in your cluster seems to be slow. You decide to create a replication channel
for your cluster. Which two statements are true? (Choose two.) The channel is used for heartbeats so they do not interfere with replication communication Each server in the cluster must have this named replication channel configured on it If no replication channel is configured, then sessions are persisted to the file system or the
database The channel can be used for stateful session bean replication The channel cannot use a secure protocol.
You have an existing domain and need to add a new managed server to it.
Which three statements are true concerning the creation of managed servers? (Choose three.) A server must be assigned a machine A server must be assigned a listen port A server’s name cannot be changed after it is created A server can be associated with a server template Servers can have duplicate names as long as they have unique ports A server must be assigned a listen address.
You access the Deployments page from the Administration Console. The targets and state of each
application are displayed. One web application named web1 is targeted to server1 and is in the
NEW state.
Which statement is true? web1 is available but has never been accessed server1 is in standby mode server1 is not running web1 is in the process of being deployed to server1.
You are using the administration console to monitor transactions on a managed server. In the
Summary subtab, under the JTA tab, you notice that the total count of transactions does not equal
the sum of the committed transactions and all of the various rolled back transaction categories.
How do you explain this? The total count field includes committed, rolled back, and heuristic completions The total count field includes in-progress transactions, but the others only show completed
transactions The total count includes distributed and local transactions. The committed count and the various
rolled back counts are for distributed transactions only The total count includes all transactions since the server was started. The other counts only
include the transactions included in the latest transaction log.
You create a new dynamic cluster with the following parameters:
Number of servers: 2
Listen port: 8101
Enable calculated listen ports: true
To which two port numbers will the resulting two dynamic servers bind? (Choose two.) 8101 8102 8103 8100 8104.
Consider a web application that is deployed to a single cluster. After configuring the application to
use in-memory session replication, there is a noticeable drop in performance, possibly due to the
large amount of data being placed in HTTP sessions.
Which action improves performance while continuing to provide high availability for this
application’s sessions? Configure asynchronous session replication in the application Increase session timeout in the application Configure file-based session persistence in the application Configure automatic service migration in the application Configure cookie-based session persistence in the application.
Which three statements are true about the Change Center in the Administration Console?
(Choose three.) The Change Center has a link to view any servers that need to be restarted In a Development Mode domain, the configuration lock can be acquired automatically The Change Center has a link to view the changes made so far Locking the console prevents other privileged users from taking the lock until you release it or
activate your changes After activating the changes to a server’s configuration, you must always restart that server The Change Center is available only in a Production Mode domain.
Which three domain requirements can you implement with the Configuration Wizard? (Choose
three.) Create a Node Manager and enroll it with the domain Create a domain using a custom template Assign virtual IP addresses to all servers Distribute domain files across multiple machines Create a dynamic cluster of five servers.
Identify two advantages of using a Single Client Access Name (SCAN) when configuring a
GridLink data source. (Choose two.) The Fast Connection Failover (FCF) pattern, which allows rapid failure detection, is enabled The more sophisticated runtime connection load balancing (RLCB) is used; without SCAN, load
balancing reverts to a simple round-robin scheme SCAN is required for the GridLink data source to use an XA driver The database URL is shorter because it contains one SCAN alias and port as opposed to a host
and port foe each RAC node The data source configuration does not need to be updated when new nodes are added to the RAC Cluster.
In your WebLogic Server environment, applications will not access a single database server.
Instead they will access a cluster of redundant database servers. This database product was
purchased from a vendor other than Oracle. You want to provide transparent failover to the
applications as they communicate with the database cluster. Which type of WebLogic data source
should you create? generic data source multi data source GridLink data source parallel data source.
Select two ways to start the Java-based Node Manager on a Linux machine. (Choose two.) Use the startNodeManager.sh script Use the administration console. Select the machine and then click the Start button. Have Node Manager start at system boot as a daemon Use the Oracle Process Manager and Notification Server (OPMN) to start Node Manager as a
system process Set the appropriate environment variables. Then run the Java virtual machine with the class
nodemanager.RunTime, passing the class the proper parameters.
One of your applications sends SQL requests to a back-end database. Today some of these
requests are very slow to complete and users are waiting an unusually long time before getting the
information back. You decided to take a look at a thread dump and found several threads with a
stack similar to:
What should be your initial assumption and first action? The maximum capacity of the connection pool was reached due to higher load than usual and you
just need to wait until new connections get released or increase the capacity of the pool. This can
be done in the Admin Console. The response data provided by the database SQL is larger than the receive socket buffer, so you
just need to increase the buffer The activity on the database side needs to be checked with your DBA to verify if the connection
request was received and how it’s been handled by the database The datasource connection was leaked and needs to be reset A firewall is blocking the connection between WebLogic Server and the back-end database. This
needs to be immediately addressed with your network administrator The Oracle JDBC driver got corrupted and needs to be reinstalled or replaces with a different
driver.
Your administration server goes down. One of the managed server of the domain is also currently
shut down. This managed server has been successfully started in the past. You cannot bring up
the administration server right away, but you need to start the managed server. You run the start
script, but the managed server will not start.
Explain this. This managed server has disabled Managed Server Independence mode Managed servers always contact their admin server for the latest configuration. When the admin
server is down, a managed server cannot be started. This managed server must be part of a cluster and the cluster master is also down This managed server must reside on the same machine as the admin server The domain must use the embedded LDAP for authentication. Without the admin server, the
managed server cannot get updates to its local LDAP store.
Your Java-based Node Manager is unable to start a managed server named myserver. You
investigate and realize that the boot.properties file Node Manager uses to store the credentials of
the managed server has been corrupted in the file system. From past experience you know that if
you delete the file, Node Manager will re-create it. under the domain directory in servers/myserver/nodemanager under the Node Manager home directory in myserver under the domain directory in servers/myserver/security under the domain directory in servers/myserver/data/nodemanager under the Node Manager home directory.
You need to scale out an existing domain to include a new machine. You install WebLogic Server
in the new machine. Which three steps are required to create the domain directory on the new
machine? (Choose three.) Use the Configuration Wizard to clone the domain Run the pack tool on the administration server’s machine Transfer the installation certificate to the administration server’s machine Transfer the managed server template to the new machine Use the Administration Console to clone the administration server Run the unpack tool on the new machine.
Your developers created Plain Old Java Objects (POJO) that provide useful functionality. The
code is packaged in a JAR file. You want to make this code accessible from all the applications
deployed to the managed servers in your domain. What are the four ways to accomplish this?
(Choose four.) Include the JAR file as an optional package Deploy the JAR file as an EJB Deploy the JAR file as a shared library Place the JAR file in the lib folder of the domain Deploy the JAR file to the administration server. All managed servers have access to their admin
server Add the JAR file to the CLASSPATH of the domain servers by editing the domain’s
seyDomainEnv.sh script Deploy the JAR file as another web application Deploy the JAR file as a web service.
The admin server’s domain files were backed up by using the tar command on Linux. The admin
server crashes and the domain files become corrupted. The domain files are restored from the
backup. You try and start the admin server by using the usual domain start script. The script does
not run. The error is “permission denied”.
How should you troubleshoot this? Check the ownership and file system permissions of the start script Ensure you are currently logged in as a WebLogic Server administrator before running the script Stop any running managed servers and then start the admin server After the restoration of a domain, you must start the admin by using WLST Be sure to start the admin server as the root user.
Which three Administration Console tasks require you to obtain the configuration lock of a
production mode domain? (Choose three.) Stop an application deployment Create a new JDBC data source Change the servers listen port Suspend a running server Add a server to an existing cluster Create a new administrative user.
Consider an application that comprises both web and EJB components.
What are two benefits of implementing a multitier cluster architecture over a single-tier(basic)
cluster architecture? (Chose two.) Dynamic clusters are only supported for the multitier architecture Remote EJB access is blocked Each cluster can be scaled independently Future web clusters can share the same EJB tier All servers can be managed (started/stopped) together.
Consider a data source whose Inactive Connection Timeout has been set to 60 seconds. You
suspect that an application is not returning JDBC connections to this data source. In response,
you go to the data source’s Monitoring tab in the Administration Console.
Which of the available columns will confirm your suspicious? State Active Connections Current Count Connection Delay Time Leaked Connection Count Current Capacity.
You are running WebLogic Server under a 64-bit HotSpot JVM.
You edit your domain’s setDomainEnc.sh script to update the minimum and maximum heap sizes
as follows:
USER_MEM_ARGS=”-Xms32meg –Xmx150meg”
Export USER_MEM_ARGS
You try to start a managed server by running the domain start script at the command line. The
server fails with the message:
Invalid initial heap size: -Xms32meg
Why does the server fail with that message? The minimum heap size for a 64-bit JVM is 64 Megabytes For performance reasons, the minimum heap size and maximum heap size should be the same
value The parameter value was entered incorrectly. The correct value is: “-Xms32m –Xmx150m” The parameter value was entered incorrectly. You must enter memory parameter values in
Kilobytes The parameter value was entered incorrectly. The correct value is: “-Xms:32meg – Xmx:150meg”.
You have been tasked with replacing an existing WebLogic domain with a brand new installation
as part of a migration. The new server needs to use the previously created JDBC store that holds
existing JMS messages.
Which two configuration requirements do you need to comply with in order to make the transition
successful? (Choose two.) In Persistent Stores, create a new JDBC store and select the option “Use existing store” The new domain name needs to be the same as the old domain it’s replacing Duplicate the JMS and persistent store configuration in the new domain The storage needs to be file based and not JDBC based Set the prefix for the JDBC store table to the domain name.
You start a managed server by running a start script at the command line. The server fails to start.
To troubleshoot this failure, you look at the window in which the script ran. One of the messages
form the server says: “boot identity not valid”.
What do you do before running the script again? Add the option to the start script that allows servers to be started without credentials Update the credentials in the boot identity file Update the credentials in the start script Create a boot identity username and password by using the administration console The boot identity file does not exist. Create one.
You are responsible for installing and setting up WebLogic Server to support the development,
testing, and production of an application. Each phase of the application’s life cycle has different
scalability, performance, and security requirements. How will you implement this? Create a single domain with three clusters Create a single domain with three administration servers Create a single domain with three managed servers Create three domains.
Consider a domain that includes a Node Manager home directory. One way to enroll each Node
Manager with your domain is with the WLST command nmEnroll().
Select the two scenarios where you do not need to use this command to perform the same task?
(Choose two.) The Node Manager is on the machine where the domain was created by using the Configuration
Wizard You create a managed server template by using the pack utility. Then create the domain by using
the unpack utility on the new machine where Node Manager will run Use the administration console. Select the machine, then the Configuration and Node Manager
tabs. Select “Enroll with the Domain.” Save and activate your changes Use the script enrollNodeManager.sh found under the WEBLOGIC_HONE directory in server/bin.
The Configuration Wizard has a Node Manager option which, if selected, allows you to also
configure a Node manager as you create your domain. Select two true statements about using the
Configuration Wizard to configure Node Manager. (Choose two.) You are required to enter the username and password for accessing Node Manager You are allowed to choose the location of the Node Manager home You can select either the Java-based or script-based Node Manager After the Configuration Wizard creates the domain, it automatically starts the configured Node
Manager.
Over time your server log files have increased in size to over 500 MB. Identify three techniques to
help decrease the size of these log files. (Choose three.) Increase the severity level Redirect standard output to the log Increase the rotation time Create and use a custom log filter Decrease the rotation file size.
You are using the Embedded LDAP that is supplied by Oracle WebLogic Server. Which three
statements are true? (Choose three.) The Embedded LDAP can be accessed by an external LDAP viewer The Embedded LDAP cannot be used in a production environment The Embedded LDAP uses the file system to store WebLogic security provider data The Embedded LDAP uses the database to store WebLogic security provider data The Embedded LDAP can be used to store user, group, security roles and security policies for the
WebLogic security providers.
The development group supplied you with the latest WAR file for the company web application. It
has been thoroughly tested and needs to be placed into production. In the production file system,
you copy over the previous WAR file with the new version. You log into the administration console
and redeploy the application. Current uses continue to access the older version of the application,
while new users are taken to the new version. Explain this scenario. This is only possible if the application is deployed to a cluster. Cluster deployments allow current
users to continue to use the previous version of an application This is possible if the application is versioned by using the WebLogic Server feature called
Production Redeployment. This is not possible. When an application is redeployed, it replaces the old version and all users
than access the new version This is not possible. When an application is redeployed, all users continue to access the old
version. Once all current users have exited the system, then all users from that point on access
the new version.
You successfully deployed an application on WebLogic 12c but notice that its deployment name is
different than what you expected.
After checking various places and making multiple deployment attempts, you decide to be on the
safe side and just use the method that takes precedence over the others when setting the
deployment name. Which method should you use to override the default deployment name? Define the name in the library’s manifest file Configure the <module-name> element in web.xml Run weblogic.Deployer with the –name option Set a computed name based on the deployment source file Set the <application-name> element in application.xml.
Consider a WebLogic Java EE application that uses a JDBC data source.
Which three steps would the application developer typically write code to perform? (Choose three.) Test the connection to verify the database’s availability Add a new connection to the data source if none are available Close the connection to return the connection to the data source Request a connection from the data source Look up the data source using the JNDI name.
Select two true statements about WebLogic Server’s role in transaction management. (Choose
two.) You can configure WebLogic Server JTA properties at the domain, cluster, and server level WebLogic Server can act as the transaction manager for multiple transactional resource managers
during a distributed transaction WebLogic Server supports transactional work managers Starting with WebLogic Server 12c, you can create two kinds of clusters: the “standard” cluster, as
in previous versions, and the new transactional cluster WebLogic Server supports transactional Enterprise Java Beans.
Which two statements are characteristics of the Reconfiguration Wizard? (Choose two.) You can upgrade any domain that was created using WLS 9.2 and above The Reconfiguration Wizard allows you to change the domain mode The Reconfiguration Wizard allows you to select a different Java JDK The Reconfiguration Wizard does not allow the reconfiguration of JDBC data sources You can upgrade only a domain which is running WLS 10.3.x or later.
While using the Configuration Wizard to create a new domain, you do not set the Listen Address
for the administration server and accept the default value. What is the result? Server startup fails The server binds to localhost The server prompts for an address when it is started the first time The server attempts to bind to all network interfaces on the host OS.
You want to configure an LDAP authentication provider in your domain. Which three pieces of
information must you obtain from your LDAP administrator? (Choose three.) name attribute for user objects connection pool maximum size base DN for group objects realm name host name and port.
Identify three capabilities of the non-default LDAP authentication providers included in WebLogic
Server. (Choose three.) adding a user to a group creating a new group changing a user’s password validating a user’s password creating a new user identifying the groups for a user.
You are using the Configuration Wizard to create a new domain that will host an EJB application
without a cluster. Remote EJB clients can therefore take advantage of WebLogic Server’s load
balancing and failover capabilities.
However, a proxy server exists between the EJB clients and this new cluster.
Which cluster attribute should you modify in the Configuration Wizard to ensure that external EJB
clients are routed correctly through the proxy? Messaging Mode Cluster Address Broadcast Channel Replication Channel Cluster Type.
By monitoring CPU and RAM utilization, it appears that one member of your cluster is receiving a
much lower percentage of the request load than the other servers.
Which Administration Console metric should you examine to help determine if a network problem
is the cause? Primary session count Drop out frequency Migration basis Health state Current heap size.
Which two statements are true about Log Filters? (Choose two.) You do not have to lock the configuration to create Log Filters Log Filters are created at the domain level The administration console assists in the creation of Log Filter expressions You can apply a Log Filter to the server log, but not to standard out.
Which two statements are true when an Administration Server is compared to a Managed Server?
(Choose two.) An administration Server manages the domain configuration A domain must have at least one of each type of server An administration Server keeps a domain log, but a Managed Server does not A Managed Server keeps a server log, but an Administration Server does not Java EE applications are deployed only to a Managed Server.
Consider a multiple node domain. On the administration server’s node, you edit setDomainEnv.sh
in the bin directory and add a new JAR file to the CLASSPATH. You stop and restart all three
WebLogic Server in the domain. Upon investigation, you discover that only applications deployed
to one WebLogic Server are able to access the JAR file code. How do you explain this? You must also set the domain attribute “CLASSPATH Discovery Enabled.” Each machine that hosts WebLogic Servers has its own domain directories. The script must be
modified there as well. Only the first server to receive the new configuration from the administration server gets the
updated CLASSPATH The CLASSPATH is not for application code. It is for interval WebLogic Server code. So, only
applications deployed to the administrative server can access code through the CLASSPATH.
You monitor a running JDBC data source with the console and note the following values:
Current Capacity = 10
Current Capacity High Count = 20
Identify two plausible explanations for these metrics. (Choose two.) The workload was lower than it is now The statement cache size is 20 The pool size has increased The statement cache size is 10 The pool size has decreased The workload was higher than it is now.
Consider a cluster of four servers: ServerA, ServerB, ServerC, and ServerD.
The cluster hosts a web application and is accessed using a proxy plug-in. This web application is
configured to use in-memory session replication.
A user is directed to ServerA. An HTTP session is established on ServerA and also replicated to
ServerC, but ServerA subsequently fails. Which server will this user be redirected to? ServerD ServerB none; the user will receive an error message ServerC any other available server.
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