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

A system administrator needs to create a diagnostic trace for an application server which has a problem that occurs only infrequently. The desire is to limit the amount of space taken up by the trace output file but still ensure that the log includes the trace information recorded during the problem. What should the system administrator do to accomplish these goals?

• A. Limit the Maximum Number of Historical Files to one.
• B. Reduce the Maximum File Size to an amount just larger than the required trace log.
• C. Use the First Failure Data Capture (FFDC)feature to ensure the trace log is only capture on the first instance of the problem.
• D. Configure the trace output to use a memory buffer and do a manual dump when the problem occurs.

A system administrator isplanning to use Intelligent Management features in an existing cell with managed web servers running in the DMZ. The system administrator has created the On Demand Router (ODR) server, however, no traffic is routed to the application servers through the ODR. What should the system administrator configure to fix this issue?

• A. Add web servers as secure proxies for the ODR, generate plugin-cfg.xml and copy to the web servers.
• B. Regenerate plugin-cfg.xml file and copy to the web servers.
• C. Add web servers to the list of servers managed by the ODR, generate plugin-cfg.xml and copy to the web servers.
• D. Add web servers to the list of servers managed by the ODR.

A system administrator needs to tune the connection pool size parameters fora data source based on the current pool usage and the application server CPU utilization. Which of the following will provide the system administrator a recommendation on the efficient values for pool size?

• A. Performance advisor for connection pool size
• B. Request Metrics for connection pool size
• C. Performance Monitoring Infrastructure counter for current pool usage
• D. Performance Monitoring Infrastructure counter for connection pool size

A system administrator needs to control which staff members have access to manage certain application servers. They choose to use fine grained control and map the staffmembers to only those specific application servers to which they need access. What does the system administrator need to do to accomplish this?

• A. Create a custom user registry which prevents authorization requests to the application servers not in the desired list.
• B. Add custom properties to each of the application servers with role mappings for each staff member
• C. Use anAdministrative Authorization Group to map the staff members and roles to the application servers.
• D. Create a security domain and add the application servers with the staff members in the role definitions.