Which action should the SysOps administrator take to accomplish this goal?
Deploy the ElastiCache cluster with Memcached as the engine.
Deploy the Redis cluster within an Auto Scaling group to launch replicas across multiple Availability Zones.
Verify that cluster mode is disabled. Increase the number of shards.
Verify that Multi-AZ with automatic failover is enabled. Place replicas in multiple Availability Zones.
Explanations:
Memcached does not support Multi-AZ with automatic failover. Redis with Multi-AZ is required for increased availability and fault tolerance.
ElastiCache clusters cannot be deployed directly within an Auto Scaling group. Instead, Multi-AZ with automatic failover is the appropriate approach.
Disabling cluster mode and increasing shards doesn’t directly improve availability or fault tolerance. Multi-AZ with automatic failover is the correct choice.
Enabling Multi-AZ with automatic failover and placing replicas in multiple Availability Zones ensures higher availability and fault tolerance for Redis.
I plan that the answer is:
Verify that Multi-AZ with automatic failover is enabled. Place replicas in multiple Availability Zones.
From my perspective, the answer is:
Verify that Multi-AZ with automatic failover is enabled. Place replicas in multiple Availability Zones.