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Amazon Web Services AWS Certified Data Engineer - Associate (DEA-C01) Data-Engineer-Associate Question # 40 Topic 5 Discussion

Amazon Web Services AWS Certified Data Engineer - Associate (DEA-C01) Data-Engineer-Associate Question # 40 Topic 5 Discussion

Data-Engineer-Associate Exam Topic 5 Question 40 Discussion:
Question #: 40
Topic #: 5

A data engineer manages a provisioned Amazon Redshift cluster that stores petabytes of data. The cluster receives continuous data ingestion from multiple sources. As data volume grows, the query performance has degraded. The current table design uses the AUTO distribution style and default sort keys. The data engineer needs to optimize the query performance for recent transactions.

Which solution will meet these requirements?


A.

Offload historical data to Amazon S3. Use Amazon Redshift Spectrum to query the data directly. Retain frequently accessed data in Amazon Redshift.


B.

Decrease the number of nodes of the current node type in the Amazon Redshift cluster.


C.

Change the data distribution style of the Amazon Redshift tables to ALL for all the tables that contain historical data.


D.

Switch from columnar storage to row-based storage. Use Amazon Redshift ML for the complex queries.


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