A web application was deployed on a WebSphere Application Server cluster. While users are using the application, one of the cluster servers fails and the users lose their working data.
What can the system administrator configure to ensure users can continue to work if one of the cluster server fails?
A . An increased session timeout.
B . A cluster of external HTTP servers.
C . A load balancer to spread work between existing servers.
D . A WebSphere eXtreme Scale HTTP session management.
Answer: D
Explanation:
WebSphere eXtreme Scale can dynamically process, partition, replicate, and manage application data and business logic across hundreds of servers. It provides transactional integrity and transparent fail-over to ensure high availability, high reliability, and consistent response times.
References: http://www.ibm.com/developerworks/websphere/techjournal/1301_ying/1301_ying.html
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