Oracle 1Z0-134 Preparation Exams 2021

NEW QUESTION 1
In order to increase scalability and high availability you are configuring WebLogic clustering with JMS distributed destinations.
Which recommendation will ensure optimal load balancing of the message processing?

• A. The machines that host the cluster should have similar processing power, disk space, and memory.


• B. The cluster should include at least one configurable server.


• C. The cluster should use unicast communication.


• D. All servers in the cluster should be assigned to the same WebLogic machine.

Answer: A

Explanation:
A uniform distributed destination (UDD), compared to weighted Distributed Destinations, greatly simplifies the management and development of distributed destination applications.Using uniform distributed destinations, you no longer need to create or designate destination members, but instead rely on WebLogic Server to uniformly create the necessary members on the JMS servers to which a JMS module is targeted. This feature ensures the consistent configuration of all distributed destination parameters, particularly in regards to weighting, security, persistence, paging, and quotas.

NEW QUESTION 2
You need to update a database accessed by an application that uses a WebLogic server data source. It has been decided that the data source on WLS should first be shut down.
You have been asked to advise as to whether they should execute a shutdown() or a forceShutdown() on the corresponding JDBCDataSourceRuntimeMBean.
Which two statements are true regarding the impact on the application that is using that data source? (Choose two.)

• A. The shutdown() operation will fail if there are any reserved connections in use.


• B. The forceShutdown() operation will allow 20 seconds for any reserved connections in use to complete prior to destroying the connection.


• C. The shutdown() operation will send an HTTP 503 status code to clients.


• D. The forceShutdown() operation will immediately cause any in-flight transaction to be rolled back.


• E. The shutdown() operation will allow 20 seconds for any reserved connections in use to complete, otherwise the operation will fail.

Answer: AD

Explanation:
A: When you shut down a data source (not forcibly shut down), WebLogic Server closes database connections in the data source and shuts down the data source. If any connections from the data source are currently in use, the operation will fail.
D: When you forcibly shut down a data source, WebLogic Server closes database connections in the data source and shuts down the data source. All current connection users are forcibly disconnected.

NEW QUESTION 3
Which three Weblogic server entities can be set up for service level migration? (Choose three.)

• A. JMS Server


• B. JOLT Service


• C. JTA Transaction Recovery Service


• D. User Defined Singleton Service


• E. JDBC Service


• F. JNDI Service

Answer: ACD

Explanation:
AC: WebLogic Server migration framework provides infrastructure and facilities to perform the manual or automatic migration of JMS-related services and the JTA Transaction Recovery Service.
D: WebLogic Server supports the automatic migration of user-defined singleton services. Automatic singleton service migration allows the automatic health monitoring and migration of singleton services. A singleton service is a service operating within a cluster that is available on only one server at any given time.

NEW QUESTION 4
Which are three valid actions of the Post Domain Creation process? (Choose three.)

• A. Import LDAP data from XML files.


• B. Run pack and unpack commands for managed servers on remote machines.


• C. Run any SQL scripts to generate database artifacts.


• D. Use WLST to run the postdomain.py script.


• E. Run the root.sh script.


• F. Assign DNS names to all the hosts.


• G. Run the RCU utility for each hosted applicatio

Answer: CEG

Explanation:
E: Following installation of your product, you need to run the root.sh script as the root user. The root.sh script detects settings of environment variables and enables you to enter the full path of the local bin directory.
G: RCU is a Fusion Middleware tool which creates database-based repositories. Oracle Data Service Integrator does not have a repository by itself, but it relies on some Fusion Middleware schemas for WebLogic Server and JCF when using a full domain.

NEW QUESTION 5
The image below depicts a high-level diagram of configuration auditing within WebLogic Server. When Administrators make configuration changes to the WebLogic Server domain, those changes are sent to the audit provider for logging.

What task must be performed in order to make configuration audit messages in the log meaningful to an observer?

• A. Define unique users for all administrators.


• B. Configure a persistent store for log messages.


• C. Configure the CONFIG severity level.


• D. Define the audit message listener for audit messages.

Answer: D

Explanation:
You can configure the Administration Server to emit a log message when a user changes the configuration or invokes management operations on any resource within a domain. For example, if a user disables SSL on a Managed Server in a domain, the Administration Server emits a log message. These messages provide an audit trail of changes within a domain's configuration. You can then create and use a JMX listener and filter that respond to configuration auditing messages.

NEW QUESTION 6
Which two statements are true about the role of cluster master in whole server migration? (Choose two.)

• A. There is exactly one cluster master in the cluster at a given point of time.


• B. The cluster master must host all the pinned services in the cluster.


• C. Any managed server in the cluster can serve as the cluster master.


• D. A cluster master must always be different from a singleton master.


• E. The cluster master must always be started with the node manage

Answer: AC

Explanation:
One server instance in a cluster that contains migratable servers acts as the cluster master and orchestrates the process of automatic server migration, in the event of failure.
Any Managed Server in a cluster can serve as the cluster master, whether it hosts pinned services or not.
Note: Any server instance in the cluster can serve as the cluster master. When you start a
cluster that contains migratable servers, the first server to join the cluster becomes the cluster master and starts up the cluster manager service. If a cluster does not include at least one migratable server, it does not require a cluster master, and the cluster master service does not start up.

NEW QUESTION 7
Your WebLogic Server (WLS) environment consists of multiple domains. Which is a true statement about WLS domains? (Choose the best answer.)

• A. Multiple domains can use the same or separate WLS installation while running on the same machine.


• B. Domains require a minimum of one managed server.


• C. Multiple domains require separate WLS installations while running on the same machine.


• D. Multiple domains require individual Node Managers while running on the same machine.


• E. Multiple domains can share the same administration server.

Answer: A

Explanation:
You can use a single Oracle WebLogic Server installation to create and run multiple domains, or you can use multiple installations to run a single domain.

NEW QUESTION 8
You need to ensure that when a failed admin server instance is restarted on another machine with a different IP address, the managed server is able to establish connection with the newly started instance.
Which technique will ensure that the connection can be made? (Choose the best answer.)

• A. Configure a DNS name for AdminServer which maps to multiple IP addresses and specify this DNS name during managed server startup.


• B. Specify multiple admin server IP addresses during managed server startup.


• C. Use WLST to update the AdminServer IP address for a running managed server.


• D. Update the host file for a running managed server instanc

Answer: C

Explanation:
You can change the network configuration of Oracle HTTP Server and Oracle Web Cache by using the following command:
(UNIX) ORACLE_HOME/chgip/scripts/chpiphost.sh (Windows) ORACLE_HOMEchgipscriptschpiphost.bat The format of the command is:
chgiphost.sh | chgiphost.bat [-noconfig] [-version] [-help]
[ -oldhost old_host_name -newhost new_host_name] [-oldip old_IP_address -newip new_IP_address] -instanceHome Instance_path

NEW QUESTION 9
You have an application already deployed in a production environment that needs a modification to one of its tuning parameters. Currently, that tuning parameter has a default value since there was neither a deployment descriptor used nor a deployment plan included with the application deployment. You now attempt to use the Administration Console web application to make a dynamic modification to that parameter.
Which statement is true? (Choose the best answer.)

• A. A new deployment plan will be generated and saved at the indicated location.


• B. The modification attempt will fail because there is no deployment descriptor included within the application.


• C. The modification attempt will fail because there is no existing deployment plan associated with the application.


• D. A new skeleton plan.xml will be generated if a plan folder is detected with the deployed applicatio

Answer: D

Explanation:
Defining tuning parameters is not required in order to successfully deploy an application. If an application’s deployment descriptors and deployment plan do not define tuning parameters, WebLogic Server uses default values. The Administration Console automatically uses a deployment plan named plan.xml in the plan subdirectory of an application root directory if one is available.

NEW QUESTION 10
Your domain is experiencing some intermittent problems that you are not able to figure out on your own. You have opened a case with Oracle Support to help you figure out the problem. The support engineer would like to use the WebLogic Diagnostic Framework (WLDF) to obtain an overall view of your WebLogic Server environment to try to narrow the problem to a particular subsystem.
What WLDF data does the support engineer request from you? (Choose the best answer.)

• A. Diagnostic image snapshot


• B. Java Flight Recording of the JVM


• C. Instrumentation log


• D. Specific harvested metrics

Answer: A

Explanation:
Diagnostic Image Capture gathers the most common sources of the key server state used in diagnosing problems. It packages that state into a single artifact, the Diagnostic Image.

NEW QUESTION 11
You have a versioned application deployed in your production environment. You have been asked to troubleshoot why
the most recent production redeployment appeared to allow the older version to retire too quickly.
In this case, the application had active RMI clients, but their subsequent calls were directed to the newer version immediately rather than waiting for the expected five minutes defined by the retirement timeout argument. The script command was:
java weblogic.Deployer –adminurl http://localhost:7001 –user weblogic
-password Welcome1 –redeploy –name myDeployment
-source /myDeployments/myApplication/appX
-retiretimeout 300
You expected the older version to remain active (when there are active RMI clients) for five minutes after executing the production redeployment.
Which modification should have been made to this command to ensure the older version remains active? (Choose the best answer.)

• A. java weblogic.Deployer –adminurl http://localhost:7001 –user weblogic-password Welcome1 –redeploy –name myDeployment-source /myDeployments/myApplication/appX-retiretimeout 300 –rmigraceperiod 300


• B. java weblogic.Deployer –adminurl http://localhost:7001 –user weblogic-password Welcome1 –redeploy –name myDeployment-source /myDeployments/myApplication/appX-retiretimeout 300 -keepsessions


• C. java weblogic.Deployer –adminurl http://localhost:7001 –user weblogic-password Welcome1 –redeploy –name myDeployment-source /myDeployments/myApplication/appX-retiretimeout 300 –timeout 300


• D. java weblogic.Deployer –adminurl http://localhost:7001 –user weblogic-password Welcome1 –redeploy –name myDeployment-source /myDeployments/myApplication/appX-retiretimeout 300 –remote

Answer: D

Explanation:
The –remote argument indicates that weblogic.Deployer is not running on the same machine as the Administration Server, and that source paths specified in the command are valid for the Administration Server machine itself. If you do not use the -remote option, weblogic.Deployer assumes that all source paths are valid paths on the local machine.

NEW QUESTION 12
Even though your company has a thorough procedure for testing applications in a pre-production environment prior to production deployment, you have decided to conduct additional testing of a particular application after it is deployed. You choose to deploy the application in administration mode.
Which three statements are true? (Choose three.)

• A. The application deployment must use the –redeploy option using a unique version string.


• B. You must configure an administration port for the entire domain, or an administration channel for the targeted server.


• C. The application must first be distributed to the targeted server prior to starting it in administration mode.


• D. The application cannot have any dependencies on any shared Java EE libraries.


• E. After testing, the application can be dynamically transitioned to start accepting all client request

Answer: BCE

Explanation:
B: Distributing an application copies deployment files to target servers and places the application in a prepared state. You can then start the application in Administration mode, which restricts access to the application to a configured Administration channel so you can perform final testing without opening the application to external client connections or disrupting connected clients.
C: Distributing an application prepares it for deployment by copying its deployment files to all target servers and validating it. After you distribute an application, you can start it in Administration mode, which restricts access to the application to a configured Administration channel and allows you to distribute the application to a production environment (or distribute a new version of an application) without opening the application to external client connections. E: While in Administration mode, you can connect to an application only via a configured Administration channel. This allows you to perform final (“sanity”) checking of the application directly in the production environment without disrupting clients. After performing final testing, you can either undeploy the application to make further changes, or
start the application to make it generally available to clients. References:

NEW QUESTION 13
A current production WebLogic Server (WLS) domain needs to be upgraded without affecting the users. What are the five steps to follow for a Rolling Update? (Choose five.)

• A. Back up the contents of your domain.


• B. Use pack and unpack to upgrade each of the servers in the machine.


• C. Shut down the servers in a single machine.


• D. Repeat the process for all machines in the domain.


• E. Restart the servers in the machine.


• F. Repeat the process for all domains in the machine.


• G. Upgrade the servers in the machin

Answer: ACDEG

Explanation:
A: Before you begin the upgrade process, make sure that you take any necessary precautions such as:
* Back up your applications, database schema, other application data, and domains.
* If required, obtain latest third party plug-ins or components that are compatible with required non-Oracle components. For example, Apache Web Server libraries.
CGED: The rolling upgrade process includes stopping the Administration Server, installing the upgrade, restarting the Administration Server, and then doing the same for each Managed Server in the cluster (machine).

NEW QUESTION 14
Which two objects can be considered potential clients of a Node Manager? (Choose two.)

• A. an administration server


• B. a WLST session


• C. an HTTP server


• D. any other Node Manager


• E. a remote JMS client


• F. the weblogic.Deployer utility

Answer: AB

Explanation:
A Node Manager client can be local or remote to the Node Managers with which it
communicates. You access either version of Node Manager—the Java version or the script-based (SSH) version—from the following clients:
A: an administration server
B: WLST commands and scripts—WLST offline serves as a Node Manager command-line interface that can run in the absence of a running Administration Server.

NEW QUESTION 15
You successfully configured a new dynamic cluster but haven’t launched any of the dynamic servers. You want to change the configuration for one specific server.
Which parameter can you modify for that server before starting up the dynamic clustered servers for the first time?

• A. listen port number of individual dynamic servers


• B. machine name that hosts a dynamic server


• C. dynamic server name


• D. replication groups


• E. No parameters can be modifie

Answer: E

Explanation:
A dynamic server is a server instance that has not been individually configured but instead gets its configuration from a server template.

NEW QUESTION 16
As part of a manual migration of JMS-related services, you just configured a custom file store and targeted it to the same migratable target as the JMS server.
Which two statements pertain to the successful configuration of this JMS store and the manual migration? (Choose two.)

• A. The custom store could be made available to a backup server target with pre-rnigration/post-migration scripts.


• B. The custom store should not be targeted to the same migratable target as the migratable service.


• C. All the candidate servers in the migratable target should have access to this custom store.


• D. The JMS server that is using the default file store should be migrated to a migratable targe

Answer: AC

Explanation:
For persistent messaging, you must configure a custom persistent store that is targeted to the same migratable target as the JMS service. Unless you are using pre/post migration scripts to move the store data across migrated servers, the custom store must be configured such that all the candidate servers in the migratable target have access to it.

NEW QUESTION 17
You are asked to configure Node Manager for your production environment. You are considering whether to use the Java version or the script-based version of Node Manager.
Which statement correctly describes the difference between the two versions?

• A. If you are installing WebLogic Server on a Windows system, you must use the Java version of Node Manager.


• B. The script-based version of Node Manager can be used in conjunction with inetd on supported UNIX systems.


• C. The script-based version of Node Manager requires a larger footprint than the Java version.


• D. When Node Manager is used for consensus leasing, you may see faster performance with the script-based version.

Answer: A

Explanation:
Java-based Node Manager runs within a Java Virtual Machine (JVM) process. It is recommended that you run it as a Windows service on Windows platforms and as an operating system service on UNIX platforms.
For UNIX and Linux systems, WebLogic Server provides a script-based version of Node Manager.

NEW QUESTION 18
We find the JMSRedelivered header set for a particular message on the receiver. In which two scenarios is this expected to happen? (Choose two.)

• A. The application has already received the message, but did not acknowledge it.


• B. The session’s recover() method was called to restart the session beginning after the last acknowledged message.


• C. The sender calls the redeliver() method for the message.


• D. The sending application crashes after sending the messag

Answer: AB

Explanation:
A: The JMSRedelivered property specifies a flag set when a message is redelivered because no acknowledge was received. This flag is of interest to a receiving application.
If set, the flag indicates that JMS may have delivered the message previously because one of the following is true:
* The application has already received the message, but did not acknowledge it.
* The session's recover() method was called to restart the session beginning after the last acknowledged message.

NEW QUESTION 19
I am configuring the security policy for my JMS module. I am specifying some security conditions for the module. Which two security conditions are valid in this context? (Choose two.)

• A. The JMS module can be accessed only between 1 pm and 6 pm.


• B. The JMS module should throw a custom security exception on invalid access.


• C. The JMS module can process only 50 messages at a time.


• D. The JMS module can be accessed only by users belonging to the Operators group.


• E. The JMS module can be accessed in a receive-only mod

Answer: AD

Explanation:
There are two security conditions:
* time-constrained
* By Group or User

NEW QUESTION 20
You want to create a WebLogic Server (WLS) Work Manager with a Response Time Request Class of one second. You start to create the following WLST script:

Which two can replace the missing sequence to finish this script? (Choose two.)

• A. cmo.addTarget(getMBean('/Servers/ManagedServer'))cd('edit:/SelfTuning/wls_domain/Wor kManagers/MyWorkManager')cmo.setResponseTimeRequestClass(getMBean('/SelfTuning/wls_domain/ResponseTimeRequestClasses/MyResponseTime')) B.managedServer=getMBean('/Servers/ManagedServer')cmo.addTarget(managedServer)cm o.setWorkManaqer(getMBean('/SelfTuning/wls_domain/WorManagers/MyWorkManager'))


• B. cd('edit:/Servers/ManagedServer')cmo.addTarget(getMBean('/SelfTuning/wls_domain/Res ponseTimeRequestClasses/MyResponseTime'))cmo.addTarget (getMBean('/SelfTuning/wls_domain/WorkManagers/MyWorkManager'))


• C. managedServer=getMBean('/Servers/ManagedServer')cmo.addTarget(managedServer)cd( 'edit:/SelfTuning/wls_domain/ WorkManagers/MyWorkManager')cmo.setResponseTimeReq uestClass(getMBean('/SelfTuning/wls_domain/ResponseTimeRequestClasses/MyRespons eTime'))


• D. cmo.addTarqet('/Servers/ManagedServer')cd('/SelfTuning/wls_domain/WorkManagers/My WorkManager')cmo.setResponseTimeRequestClass('/SelfTuning/wls_domain/ResponseTimeRequestClasses/MyResponseTime')

Answer: AD

NEW QUESTION 21
You are implementing leasing functionality within your environment to ensure exclusive ownership of a cluster-wide entity.
Which type of leasing requires that Node Manager is configured and running? (Choose the best answer.)

• A. high-availability database leasing


• B. high-consensus leasing


• C. non-database consensus leasing


• D. high-availability in-memory leasing

Answer: C

Explanation:
Setting Migration Basis to Consensus leasing means that the member servers maintain leasing information in-memory, which removes the requirement of having a high-availability database to use leasing. This version of leasing requires that you use Node Manager to control servers within the cluster.

NEW QUESTION 22
I want to configure automatic migration of pinned services from an unhealthy server to another target in the cluster. I wish to configure consensus leasing for this purpose.
Which two statements are true in this scenario? (Choose two.)

• A. Set the cluster “Migration Basis” policy to Consensus.


• B. Migratable server should be associated with a node manager.


• C. Set the server “Migration Basis” policy to Consensus.


• D. A high availability database must be configured to manage consensus leasing informatio

Answer: AC

Explanation:
A: Using the Automatic Migration option requires setting a cluster’s Migration Basis policy to either Database or Consensus leasing.
C: Setting Migration Basis to Consensus leasing means that the member servers maintain leasing information in-memory, which removes the requirement of having a high-availability database to use leasing. This version of leasing requires that you use Node Manager to control servers within the cluster.

NEW QUESTION 23
My JMS Server uses a persistent file store. I need to ensure that the size of the persistent store does not exceed 1GB. Which option can I use to configure this? (Choose the best answer.)

• A. Set the weblogic.store.FileSize to 1GB.


• B. Set the weblogic.store.MaxFileSize to 1GB.


• C. Set the weblogic.store.TotalFileSize to 1GB.


• D. The file size limit must be configured at the operating system level.

Answer: D

NEW QUESTION 24
You are tasked with doing a rolling upgrade of a production domain that will minimize user interruptions. What are two characteristics of a rolling upgrade? (Choose two.)

• A. Configuration changes can be made during the Rolling Update process.


• B. A major upgrade, for example 11g to 12c, can be accomplished with a Rolling Update.


• C. The machines can be upgraded in any order.


• D. The machine hosting the Administration Server must be upgraded first.


• E. Avoid configuration changes until all the servers in the domain have been upgrade

Answer: DE

Explanation:
D: The rolling upgrade process includes stopping the Administration Server, installing the upgrade, restarting the Administration Server, and then doing the same for each Managed Server in the cluster.
E: You should not make configuration changes during the upgrade process until all the servers in the cluster have been upgraded. This is especially true for new configuration options.
Note: Rolling Upgrade is the process of upgrading a running WebLogic Server cluster with a patch, maintenance pack, or minor release without shutting down the entire cluster or domain. During the rolling upgrade of a cluster, each server in the cluster is individually upgraded and restarted while the other servers in the cluster continue to host your application.

NEW QUESTION 25
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