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

2. A system administrator has made a configuration change to the cell repository that needs to replicate to a node. The node agent of the node is currently in stopped state. What must the system administrator do to synchronize thenodes with the deployment manager?

A) Execute the command syncNode [options]
B) Restart the deployment manager.
C) Invoke theSync operation on NodeSync MBean from wsadmin connected to deployment manager.
D) Run the Synchronize function from administrative console by selecting the out of sync node.

3. An enterprise application needs to be deployed into a production WebSphere Application Server environment. The EAR contains application scoped resources which will conflict with the resourcedefinitions that already exist in the federated environment.How can the system administrator ensure that the enterprise application uses only the already existing resources?

A) Check that the EAR file is not in the application server classpath.
B) Verify that the classpath does not include the folder containing the application scoped resources.
C) Change the scoping for the existing resources to the cell level.
D) Make sure that Process embedded configuration is not selected during the deploy process.

4. In a production environment, a system administrator tuned the data source statement cache to optimize the processing of prepared statements and callable statements by caching those statements that are not used in an active connection. When the cache is full, old entries in the cache are discarded. The administrator would like to get statistics on the number of statements discarded from the cache to determine how to minimizecache discards. How can the system administrator obtain this information?

A) Use the Tivoli Performance Viewer.
B) Enable request metrics.
C) Use the IBM Support Assistant Data Collector.
D) Configure HPEL and examine the log files.

5. A new security requirement needs to be implemented in the WebSphere Application Server environment. Any application deployed to the WebSphere Application Server cannot have a direct access to the file system if it is not needed. What should the system administrator do to enforce this requirement?

A) Enable Java 2 Security and modify policy files.
B) Add the '-nofs ' option to the JVM startup parameters.
C) Add the 'com.ibm.jvm.filesystemaccess=no' parameter to the WebSphere Application Server configuration file.
D) Modify the JVM policy file located inthe Java SDK directory.

Solutions: