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09/11/2022 3:19 am
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.
Suggested Answer: B