Oracle Oracle Certifications 1Z0-134 Questions & Answers

• Question 41:

  Coherence is integrated with WebLogic Server in the form of managed Coherence servers.

  What two options are immediate benefits of running Coherence on WebLogic Servers versus as standalone servers that are not part of the WebLogic domain? (Choose two.)

  A. automatic failure detection and restart of Coherence-based servers

  B. automatic data partition re-balancing of all cached data on running servers

  C. monitor Coherence MBeans with the WebLogic Server administration console

  D. life cycle management with the WebLogic Server administration console

  E. offload WebLogic Server HTTP session state to Coherence-based servers

  Correct Answer: CE

• Question 42:

  You have been asked to assist developers with executing a partial redeployment of static files within a Java EE Web Application deployed to WebLogic Server. The Web Application has already been deployed as an exploded archive directory.

  Which of the following represents the correct conditions for this to be successful? (Choose the best answer.)

  A. The -redeploy argument is used when executing the weblogic.Deployer command.

  B. The -distribute argument is used when executing the weblogic.Deployer command.

  C. The -distribute argument is used when executing the weblogic.Deployer command and the domain must be in development mode.

  D. The -redeploy argument is used when executing the weblogic.Deployer command and the domain must be in development mode.

  Correct Answer: B

  Reference: https://docs.oracle.com/cd/E24329_01/web.1211/e24443/redeploy.htm#DEPGD285

• Question 43:

  Review the following WLST commands.

  

  What happens when these commands are executed? (Choose the best answer.)

  A. A diagnostic module named mymodule is created in the domain configuration file and it is enabled on cluster1.

  B. A JMS module named mymodule is created without changing the domain configuration file and it is enabled on cluster1.

  C. A diagnostic module named mymodule is created without changing the domain configuration file and it is enabled on cluster1.

  D. A JMS module named mymodule is created in the domain configuration file and it is enabled on cluster1.

  Correct Answer: C

  Reference: https://docs.oracle.com/middleware/1213/wls/WLSTC/WLSTC.pdf (73)

• Question 44:

  Which three considerations do you need to keep in mind while configuring a JMS file store in order to ensure the highest possible performance? (Choose three.)

  A. Privilege local disks over remotely mounted disks.

  B. Compress the file store when there are no more messages.

  C. Select the cache-flush synchronous write policy.

  D. Dedicate one disk for all file stores.

  E. Set MessagesMaximum in your JMS destinations.

  Correct Answer: ABD

  Reference: https://docs.oracle.com/middleware/1212/wls/PERFM/storetune.htm#PERFM231

• Question 45:

  You created a user and group using the WebLogic Server default authentication provider.

  Where are these principals stored? (Choose the best answer.)

  A. the WebLogic Server OPSS jps-config.xml security store

  B. the WebLogic Server embedded LDAP server

  C. the WebLogic Server embedded database security store

  D. the default jazn-data.xml file-based security store

  Correct Answer: B

  Reference: https://docs.oracle.com/middleware/1213/wls/WLACH/pagehelp/ Securitysecurityauthenticatordefaultauthenticatorconfigproviderspecifictitle.html

• Question 46:

  Your clients are connected to distributed destinations to consume messages sent to various JMS topics.

  Recently, JMS connections got interrupted due to a network failure and your clients dropped their connections as well.

  How would you ensure seamless failover for your clients when a distributed destination fails? (Choose the best answer.)

  A. No action should be needed at the client's level if the failover is being handled properly at the cluster level.

  B. Set the 1ientReconnectOptions parameter to Automatic in the Administration Console under the destination configuration general page.

  C. Implement an automatic reconnect mechanism in the client exception handler.

  D. Set AutomaticClientReconnect to Enabled in the Administration Console under the destination configuration general page.

  Correct Answer: C

  A simple way to failover a client connected to a failed distributed destination is to write reconnect logic in the client code to connect to the distributed destination after catching onException.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs90/jms/dds.html

• Question 47:

  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 upgraded.

  Correct Answer: DE

  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.

  Incorrect Answers:

  A: You should not make configuration changes during the upgrade process until all the servers in the cluster have been upgraded.

  B: Rolling upgrade applies only to upgrades within a major product version. For example, you can upgrade from 10.0 to 10.3.3, but cannot upgrade from 9.0 to 10.0.

  C: 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.

  Reference: http://docs.oracle.com/cd/E14571_01/web.1111/e13754/rolling_upgrade.htm#WLUPG272

• Question 48:

  You have enabled JMS Diagnostic Logging and are analyzing JMS Message delivery and acknowledgment using the generated log entries. For this purpose, you are tracking individual message IDs.

  What is the default format of the message ID that you would expect to see in the log? (Choose the best answer.)

  A. Hexadecimal (e.g., 0xCAE987A401)

  B. Numeric (e.g., 9018199222001)

  C. Floating Point (e.g., 10029920902.10111)

  D. Doubly dot delimited (e.g., 683871.1122857923566.0)

  Correct Answer: D

  Example: >

  Reference: https://docs.oracle.com/cd/E12840_01/wls/docs103/jms_admin/troubleshoot.html

• Question 49:

  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 target.

  Correct Answer: AC

  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.

  Reference: http://docs.oracle.com/cd/E21764_01/apirefs.1111/e13952/taskhelp/jms_servers/ MigrateJMSServer.html

• Question 50:

  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.

  Correct Answer: AD

  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.

  Reference: https://docs.oracle.com/cd/E13222_01/wls/docs92/jdbc_admin/manage.html