Medium1 markMultiple Choice
AWS SAP-C02 · Question 58 · Domain 3.3: Performance Improvement
An architect is designing a data warehouse solution using Amazon Redshift. The data warehouse will be queried by multiple business intelligence dashboards. During peak business hours, the number of concurrent queries spikes, causing performance degradation. What is the MOST cost-effective way to handle these unpredictable spikes?
An architect is designing a data warehouse solution using Amazon Redshift. The data warehouse will be queried by multiple business intelligence dashboards. During peak business hours, the number of concurrent queries spikes, causing performance degradation. What is the MOST cost-effective way to handle these unpredictable spikes?
Answer options:
A.
Resize the Redshift cluster to a larger instance type.
B.
Enable Concurrency Scaling on the Redshift cluster.
C.
Use Amazon ElastiCache to cache query results.
D.
Migrate the data to Amazon Athena.
How to approach this question
Identify the Redshift feature for handling concurrent query spikes.
Full Answer
B.Enable Concurrency Scaling on the Redshift cluster.✓ Correct
Enable Concurrency Scaling on the Redshift cluster.
Amazon Redshift Concurrency Scaling automatically adds additional cluster capacity to process an increase in concurrent read queries. It is highly cost-effective as you accrue free credits and only pay per second of usage beyond that.
Common mistakes
Choosing cluster resize, which is slow and expensive.
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