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True or False: In Amazon ElastiCache replication groups…

True or False: In Amazon ElastiCache replication groups of Redis, for performance tuning
reasons, you can change the roles of the cache nodes within the replication group, with the
primary and one of the replicas exchanging roles.

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A.
True, however, you get lower performance.

B.
FALSE

C.
TRUE

D.
False, you must recreate the replication group to improve performance tuning.

Explanation:
In Amazon ElastiCache, a replication group is a collection of Redis Cache Clusters, with one
primary read-write cluster and up to five secondary, read-only clusters, which are called read
replicas. You can change the roles of the cache clusters within the replication group, with the
primary cluster and one of the replicas exchanging roles. You might decide to do this for
performance tuning reasons.
http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/Replication.Redis.Groups.ht
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