IBM WebSphere Application Server Network Deployment V8.5, Core Administration Sample Questions:

1. A systemadministrator has configured a cluster containing 40 servers. The cluster members all belong to one core group. While examining the log files, the administrator notices that the core group coordinator is consuming abnormally high amounts of memory and CPU resources. How can the system administrator reduce the memory and CPU resource usage of the core group coordinator?

A) Configure a second coordinator.
B) Increase the JVM heap on the server running the coordinator.
C) Split the members into multiple core groups.
D) Move the coordinator to another machine.

2. A company needs to use the same application server configuration to test the application in development, test and pre-production environment. It would like to back up theserver configuration from the development environment and restore it in other environments. How can the system administrator meet this requirement?

A) Copy all the files under the profile's server directory.
B) Use the wsadmin AdminTask exportServer and wsadmin AdminTask importServer commands.
C) Use the backupConfig and restoreConfig commands.
D) Copy only the XML files under the profile'sserver directory.

3. A system administrator is seeing data source naming exceptions during runtime and needs to check the JNDI name of the Java Transaction API (JTA) data source used within an Enterprise Java Beans (EJB) module. Which file should the administrator examine?

A) web.xml
B) persistence.xml
C) ibm-web-bnd.xmi
D) ibm-ejb-jar-bnd.xmi

4. A system administrator has configured a clustered environment where session persistence
is configured. While tuning the environment, the administrator enables verbose garbage collection. Now the administrator is seeing a high CPU usage for the servers in the cluster and begins seeing out-of-memory exceptions in the log files. How can the system administrator diagnose what is accumulating in the memory and causing the out-of-memory exceptions?

A) Use the Garbage Collection and Memory Visualizer tool in the IBM Support Assistant.
B) Disable verbose garbagecollection and compare the before and after verbose garbage collection statistics.
C) Examine the verbose garbage collection statistics in the SystemOut.log files.
D) Enable High Performance Extensible Logging (HPEL).

5. A system administrator would like to see new type of audit events in a log. After creating a new event filter, and adding it to a default audit service provider, the system administrator cannot see any new events generated. What additional configuration does the system administrator need to do?

A) Add the event filter to the audit event factory.
B) Add the auditor role tothe system administrator profile.
C) Synchronize the configuration.
D) Enable the event filter, as it is by default disabled.

Solutions: