Exam AWS Certified Data Analytics - Specialty topic 1 question 106 discussion

Answer is B https://docs.aws.amazon.com/redshift/latest/dg/concurrency-scaling.html You manage which queries are sent to the concurrency-scaling cluster by configuring WLM queues. When you turn on concurrency scaling, eligible queries are sent to the concurrency-scaling cluster instead of waiting in a queue.

correct answer is B. (https://docs.aws.amazon.com/redshift/latest/dg/concurrency-scaling.html) D is wrong because it works only for manual WLM config. (https://docs.aws.amazon.com/redshift/latest/dg/wlm-queue-hopping.html)

B: I passed the test

Correct answer is B as concurrency scaling can help scale the avoiding query queuing without impacting latency and the query times of other teams. With the Concurrency Scaling feature, you can support virtually unlimited concurrent users and concurrent queries, with consistently fast query performance.When you turn on concurrency scaling, Amazon Redshift automatically adds additional cluster capacity to process an increase in both read and write queries. Users see the most current data, whether the queries run on the main cluster or a concurrency-scaling cluster. You're charged for concurrency-scaling clusters only for the time they're actively running queries. Option D is wrong as workload management query queue hopping works only with manual WLM config. Option A is wrong as it does not help avoid query queuing. Option C is wrong as concurrency scaling does the same automatically.

Answer is B

Answer is B

I think B is right answer