Exam AWS-SysOps topic 1 question 632 discussion

Exam question from Amazon's AWS-SysOps

Question #: 632
Topic #: 1

A company is running a popular social media site on EC2 instances. The application stores data in an Amazon RDS for MySQL DB instance and has implemented read caching by using an ElastiCache for Redis (cluster mode enabled) cluster to improve read times. A social event is happening over the weekend, and the
SysOps Administrator expects website traffic to triple.
What can a SysOps Administrator do to ensure improved read times for users during the social event?

A. Use Amazon RDS Multi-AZ.
B. Add shards to the existing Redis cluster.
C. Offload static data to Amazon S3.
D. Launch a second Multi-AZ Redis cluster.

Show Suggested Answer

Suggested Answer: B 🗳️

by saumenP at Sept. 8, 2019, 5:42 p.m.

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saumenP

Highly Voted 2 years, 7 months ago

correct https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/redis-cluster-resharding-online.html

upvoted 14 times

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albert_kuo

Most Recent 10 months ago

Selected Answer: B

Adding shards to the existing Redis cluster allows for horizontal scaling of the cluster, which can help accommodate the increased read traffic during the social event. By adding more shards, you increase the number of nodes available for processing read requests, thereby distributing the load and improving read performance.

upvoted 1 times

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