A development team is evaluating the use of Amazon ElastiCache for Redis to implement an in-memory caching layer for their relational database in order to improve read performance and reduce database load.

Which two of the following options are correct when configuring Amazon ElastiCache for Redis? (Select two)

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All the nodes in a Redis cluster must reside in the same region

36.4%

While using Redis with cluster mode enabled, asynchronous replication mechanisms are used to keep the read replicas synchronized with the primary. If cluster mode is disabled, the replication mechanism is done synchronously

9.1%

If you have no replicas and a node fails, you experience no loss of data when using Redis with cluster mode enabled

11.4%

While using Redis with cluster mode enabled, you cannot manually promote any of the replica nodes to primary

31.8%

You can scale write capacity for Redis by adding replica nodes

11.4%

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