Card 90 / 125: What is TRUE about HTTPSession clustered replication?
A)
HTTPSession clustered replication means redundant storing of the attributes of a HTTPSession on nodes of a cluster
B)
HTTPSession clustered replication means divide storing the attributes of a heavy HTTPSession on nodes of a cluster
C)
It increases the application's availability
D)
It decreases the application's fault-tolerance
E)
It may impact performance
Answer:
A) HTTPSession clustered replication means redundant storing of the attributes of a HTTPSession on nodes of a cluster
C) It increases the application's availability
E) It may impact performance
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High availability is achieved because in the event one of your node crashes, another node in the cluster will be able to recover. Hence, the fault-tolerance is improved.
Replication has performance costs due to resources and time consumed to serialize objects stored in the session and due to network bandwidth requirements needed to keep the copies in sync.
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JavaChamp TeamSenior Java Developer
QuizOver.com
Germany
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