1Z0-108 Free Dumps Study Materials
Question 20: Click on the Exhibit button.
Scenario : A multi-cluster architecture, with two geographically separated clusters (WAN-1 and WAN-2), is
being created. It will provide cross-cluster WAN HTTP session failover. The WAN-1 cluster is located in
London and the WAN-2 cluster is located in New York and is connected via a slow interconnect. The client
request passes through a Global load balancer which load balances the request to local load balancers
which eventually pass the load to WebLogic Server instances in the cluster. Four WebLogic Server
instances will be running on each cluster distributed on two physical machines, two WebLogic instances per
physical machine. A database is configured on each cluster for HTTP Session state failover between the
clusters.
What would be the characteristics of the above WAN Cluster for optimal performance and scalability?
A. High network latency, asynchronous persistent replication between WAN-1 and WAN-2, synchronous
intra-cluster replication and cross-cluster replication via in-memory, JDBC or file persistence.
B. Fast network, synchronous persistent replication between WAN-1 and WAN-2, asynchronous replication
intra-cluster and cross-cluster replication via file persistence.
C. High network latency, asynchronous persistent replication between WAN-1 and WAN-2, synchronous
intra-cluster replication and cross-cluster replication via JDBC
D. Low network latency, asynchronous persistent replication between WAN-1 and WAN-2, no intra-cluster
replication and cross-cluster replication via JDBC
E. Fast network, synchronous persistent replication between WAN-1 and WAN-2, asynchronous
intra-cluster replication and cross-cluster replication via cookie persistence.
Correct Answer: C