Question { 25100 }

1. What is clustering? How do weblogic instances communicate
in a clustered environment!
2. In a cluster, if one of the servers has issues and is not
accessible, will the other servers know about it? and how??

Answer

Multiple servers can handle request is cluster
cluster Achieved High Availability by implementing fail-over
if u are implementing fail-over u achieved High Availability


yes Knows, cluster Member communicate each other by using multicast address .multicast address using cluster members through servers sends Heart Beats