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Question 281 - SAP-C01 discussion

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A company collects a steady stream of 10 million data records from 100,000 sources each day. These records are written to an Amazon RDS MySQL DB. A query must produce the daily average of a data source over the past 30 days. There are twice as many reads as writes. Queries to the collected data are for one source ID at a time.

How can the Solutions Architect improve the reliability and cost effectiveness of this solution?

A.
Use Amazon Aurora with MySQL in a Multi-AZ mode. Use four additional read replicas.
Answers
A.
Use Amazon Aurora with MySQL in a Multi-AZ mode. Use four additional read replicas.
B.
Use Amazon DynamoDB with the source ID as the partition key and the timestamp as the sort key. Use a Time to Live (TTL) to delete data after 30 days.
Answers
B.
Use Amazon DynamoDB with the source ID as the partition key and the timestamp as the sort key. Use a Time to Live (TTL) to delete data after 30 days.
C.
Use Amazon DynamoDB with the source ID as the partition key. Use a different table each day.
Answers
C.
Use Amazon DynamoDB with the source ID as the partition key. Use a different table each day.
D.
Ingest data into Amazon Kinesis using a retention period of 30 days. Use AWS Lambda to write data records to Amazon ElastiCache for read access.
Answers
D.
Ingest data into Amazon Kinesis using a retention period of 30 days. Use AWS Lambda to write data records to Amazon ElastiCache for read access.
Suggested answer: B

Explanation:

Reference: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Introduction.html

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asked 16/09/2024
Juan Bueno
40 questions
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