Oracle Java Cloud Service Certified Associate (1z0-161) Free Practice Test

Question 1

Oracle Enterprise Manager Fusion Middleware Control is one of the consoles available to you from the Oracle Java Cloud Service Console.
Which two tasks would the Fusion Middleware Control Console enable you to do? (Choose two)

A. Start the VM of a Managed Server

B. Start WebLogic Server on a Managed Server while the VM is running

C. Shut down the WebLogic Server process running on an individual Managed Server without stopping the VM of the Managed Server

D. Shut down the WebLogic Server running on the Managed Servers in a cluster, then automatically shut down the VM of each Managed Server

E. Shut down the WebLogic Server running on an individual Managed Server, and automatically stop the VM of the Managed Server

Correct Answer: B,C

Question 2

You are assisting on Oracle Java Cloud Service (JCS) customer who has reported slow response times in their production system. The customer has provided you with details of the number of concurrent users, the number and size of application requests, their data volumes, and their desired CPU utilization. You have only a limited time window during which you can change the production environment.
What is the optimal order of priority for your initial remedial actions?

A. 1. Monitor system metrics such as utilization of disc/CPU, network data transfers, persistent store writers, and logging volume2. Locate or identify bottlenecks in the application, database, and WebLogic configuration3. Analyze the results, suggest changes that are likely to give the maximum benefit, and then prioritize configuration changes based on the analysis.

B. 1. Configure an identically sized JCS environment in an alternate data center2. Deploy the customer application to the new environment3. Implement the Oracle JCS tuning methodology to compare the results

C. 1. Use the WebLogic Diagnostic Framework to gather performance metrics2. Tune the WebLogic environment based on diagnostic results3. Monitor application performance in JCS Control Console and Fusion Middleware Control console

D. 1. Log in to the JCS virtual hosts and use Linux command line tools to monitor performance2. Change the Linux kernel parameters to improve performance3. Apply patches to the OS and the WebLogic Server

E. 1. Use Oracle Fusion Middleware Control to configure a dashboard with custom metrics2. Use Java Mission Control to monitor JVM heap usage3. Take Java Threads dumps and search for locked threads

Correct Answer: C

Question 3

You want to use WebLogic Server Scripting Tool (WLST) commands online to deploy an application to an Oracle Java Cloud Service instance.
You specify the following commands:

Which statement about the effects of the deploy command is true?

A. You must specify the path to the location of the application on the Administration Server's VM

B. If you had not specified targets, the application would have been deployed to the cluster

C. You can only specify a .war file for the application

D. WLST deploys the application after waiting 120,000 ms

Correct Answer: A

Question 4

You attempted to apply a Patch Set Update (PSU), but the patching operation failed and did not return the service instance to its original state.
Which one of these actions should you take?

A. Apply the patch by using OPatch

B. Restart the WebLogic Server Administration Server

C. Use the backup to restore the original state

D. Roll back the patch to remove any remaining artifacts

E. Take no action and reapply the patch

Correct Answer: C

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Question 5

You want to restore an Oracle Java Cloud Service instance, including its database, from a backup.
Which two tasks must you perform before selecting Restore on the backup? (Choose two)

A. Shut down the WebLogic Server Administration Server in the service instance

B. Shut down the WebLogic Server Managed Servers in the service instance

C. Disable traffic to the load balancer

D. Shut down the load balancer

E. Use Oracle Database Cloud - Database as a Service to restore the database from the associated database backup, which is identified by its RMAN tag

Correct Answer: A,D

Question 6

Your Oracle Java Cloud Service instance has one Managed Server, instance_server_1, which resides on the same VM as the Administration Server.
The managed Server needs to be restarted to address processing errors.
Which two options can you use to restart instance_server_1 without disrupting access to the Administration Server? (Choose two)

A. Stop and start the Managed Server using the Oracle Java Cloud Service REST API

B. Stop and start the Managed Server using Oracle WebLogic Server Administration Console

C. Stop and start the Managed Server using WLST commands

D. Stop and start the Managed Server from the Topology page in the Oracle Java Cloud Service Console

E. Stop and start the Managed Server using Oracle Traffic Director

Correct Answer: B,C

Question 7

When troubleshooting an application, an important source of information is the state of the runtime Management Beans that are exposed by WebLogic Server.
Select two locations where these metrics may be found. (Choose two)

A. in the contents of a Java Thread Dump that was taken by using the WebLogic Server Administration Console

B. via the Eclipse IDE console that is included with OEPE

C. in the WebLogic Server Monitoring Dashboard

D. in the Oracle Fusion Middleware Control performance console

E. in the WebLogic Managed Server diagnostic log files

F. via the Java Cloud Service metrics page

Correct Answer: E,F

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Oracle Java Cloud Service Certified Associate (1z0-161) Free Practice Test