Explanation:
To increase resilience and minimize the Recovery Time Objective (RTO) for Amazon ElastiCache (Redis OSS), implementing a Multi-AZ deployment is the best solution. By enabling Multi-AZ with auto-failover, AWS automatically promotes a read replica to the primary node if the current primary node fails, ensuring high availability with minimal manual intervention.
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Question #33
A company uses Amazon ElastiCache (Redis OSS) to cache application data. A CloudOps engineer must implement a solution to increase the resilience of the cache. The solution also must minimize the recovery time objective (RTO). Which solution will meet these requirements?
A
Replace ElastiCache (Redis OSS) with ElastiCache (Memcached).
B
Create an Amazon EventBridge rule to initiate a backup every hour. Restore the backup when necessary.
C
Create a read replica in a second Availability Zone. Enable Multi-AZ for the ElastiCache (Redis OSS) replication group.
D
Enable automatic backups. Restore the backups when necessary.
E
None
F
None
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