Oracle WebLogic Server 12c: Administration I — Question 33

You require high availability for HTTP sessions in a web application. In addition, you have the following constraints:
"¢ There is little free memory on the machines hosting the cluster.
"¢ HA must be guaranteed even when multiple machines fail simultaneously.
"¢ You are not allowed to update the production databases schema.
Which is the best session persistence option?

Answer options

• A. Database persistence
• B. File persistence
• C. In-memory replication
• D. Whole-server migration

Correct answer: C

Explanation

In-memory replication is the best option because it allows for quick access to session data without requiring additional memory overhead from a database or file storage, which is crucial given the limited memory constraints. Database persistence and file persistence would not meet the high availability requirement during multiple failures, and whole-server migration is not a viable solution in this scenario.