A new cell contains a cluster with members defined in two managed nodes running on two different machines. The cell also contains two unmanaged nodes running on HTTP servers with HTTP plug-in. Session persistence has been enabled.
Which additional component(s) can the system administrator configure to make this environment highly available?
A. Enable administrative security.
B. Configure a DMZ secure proxy.
C. Configure High Performance Extensible Logging.
D. Configure primary and backup load balancers for the HTTP servers.