A.The Web Session Affinity feature of Active GridLink for RAC
B.WebLogic Clustering  
C.The Transaction Affinity feature of Active GridLink for RAC
D.Coherence*Web Session Replication

A.There may be a bottleneck in the application that additional hardware would not solve.
B.Adding more hardware is costly and time consuming.
C.Adding hardware at the application layer may place additional load on an already overloaded database, network appliance, or storage system.
D.Adding more hardware may introduce new configuration requirements that need to be tested.

A.Sessions can't be preserved when redeploying applications. The customer needs to consider redeployment during late nights when the traffic is low.  
B.Change the flag responsible for the development mode of their environment. In the production mode, all sessions are preserved while redeploying application.  
C.Change Hotspot to JRockit. Sessions can't be preserved on HotSpot when redeploying application. 
D.Use flag -version when redeploying the application. This will switch on the Side By Side deployment feature and preserve existing sessions.
E.Open a service request with Oracle Support. This is unexpected behavior. Sessions are  preserved without any extra settings.

A.Shut down the managed server from the WebLogic console.
B.Shut down the managed server using the WLST command through Node Manager.
C.Run "kill -9" once to kill the managed server process.
D.Run "kill -9" to kill the managed server process, and run "kill -9" one more time if the managed  server is restarting.

A.Assign more than one managed server to a physical hardware that allows better CPU  utilization
B.Assign more than one application to one managed server to better utilize threads within a single JVM process
C.Assign the same application to more than one managed server to load balance requests  between servers
D.Assign the same heap size to the managed server across the cluster for easier control of  memory footprint  
E.Create a virtualized environment with hypervisor for an easier solution

A.Combine all applications into a single one.
B.Define global roles on the WebLogic Domain level.
C.Use Ms Active Directory to keep the roles there. 
D.Use Oracle Identity and Access Management solution to simplify the management.
E.Keep role mapping in the external WebLogic Role Mapped developed for that solution.