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Oracle WebLogic Server 12c: Administration I Questions and Answers

Question 9

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?

Options:

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.

Question 10

Which three statements are true about WebLogic clusters? (Choose three.)

Options:

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.

Question 11

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.)

Options:

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

Question 12

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?

Options:

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

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Oracle WebLogic Server 12c: Administration I Questions and Answers

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