Which method should a Database Specialist use to scale the ElastiCache cluster ahead of the upcoming event?

A gaming company has implemented a leaderboard in AWS using a Sorted Set data structure within

Amazon ElastiCache for Redis. The ElastiCache cluster has been deployed with cluster mode disabled and has a replication group deployed with two additional replicas. The company is planning for a worldwide gaming event and is anticipating a higher write load than what the current cluster can handle.

Which method should a Database Specialist use to scale the ElastiCache cluster ahead of the upcoming event?
A . Enable cluster mode on the existing ElastiCache cluster and configure separate shards for the Sorted Set across all nodes in the cluster.
B . Increase the size of the ElastiCache cluster nodes to a larger instance size.
C . Create an additional ElastiCache cluster and load-balance traffic between the two clusters.
D . Use the EXPIRE command and set a higher time to live (TTL) after each call to increment a given key.

View Answer

Answer: B