Q15 — AWS DEA-C01 Ch.1

Question 15 of 100 | ← Chapter 1

A company uses an Amazon Redshift cluster that runs on RA3 nodes. The company wants to scale read and write capacity to meet demand. A Data engineer needs to identify a solution that will turn on concurrency scaling. Which solution will meet this requirement?

• A. Turn on concurrency scaling in workload management (WLM) for Redshift Serverless workgroups.
• B. Turn on concurrency scaling at the workload management (WLM) queue level in the Redshift cluster. ✓
• C. Turn on concurrency scaling in the settings during the creation of any new Redshift cluster.
• D. Turn on concurrency scaling for the daily usage quota for the Redshift cluster.

Correct Answer: B. Turn on concurrency scaling at the workload management (WLM) queue level in the Redshift cluster.

Explanation

在AmazonRedshift中，为了提升读写容量以满足需求，可以通过在Redshift集群的工作负载管理（WLM）队列级别启用并发扩展来实现。这允许Redshift根据需求动态调整资源，从而增强处理能力和效率。选项B明确指出在Redshift集群的WLM队列级别启用并发扩展，符合题目要求。选项A关于RedshiftServerless的说明与题目中的RA3节点不符，C选项是在创建新集群时设置，不针对现有集群的需求调整，D选项关于日常使用配额的并发扩展不是Redshift的标准功能。因此，正确答案是B。