Barclays Senior Analyst Interview Questions and Answers

To stop and start JVMs in a WAS backend, use administrative console or scripting. Best practice is to perform rolling restarts.

• Use administrative console to stop and start JVMs individually or in a cluster

• Use scripting (such as wsadmin) for automation and bulk operations

• Perform rolling restarts to minimize downtime and ensure high availability

• Monitor JVM health and performance before and after restarts

Script to delete files older than 7 days in a Linux VM

• Use the find command to locate files older than 7 days

• Pipe the output of find to the rm command to delete the files

• Make sure to test the script in a safe environment before running it on important files