SHA256
1.2 KiB
1.2 KiB
Practice Exam 3 Mistakes
A Developer is creating a DynamoDB table for storing application logs. The table has 5 write capacity units (WCUs). The Developer needs to configure the read capacity units (RCUs) for the table. Which of the following configurations represents the most efficient use of throughput?
- Eventually consistent reads of 5 RCUs reading items that are 4 KB in size x Strongly consistent reads of 5 RCUs reading items that are 4 KB in size
- Eventually consistent reads of 15 RCUs reading items that are 1 KB in size
- Strongly consistent reads of 15 RCUs reading items that are 1KB in size
[!note] Correct Answer Eventually consistent reads of 15 RCUs reading items that are 1 KB in size
[!caution] Explanation Among these options, the most cost-efficient in terms of maximizing the number of read operations per RCU is: Eventually consistent reads of 15 RCUs reading items that are 1 KB in size.
This choice utilizes the RCU allocation most effectively because:
- It leverages the lower RCU consumption of eventually consistent reads.
- It takes advantage of the smaller item size (1 KB), which requires fewer RCUs for the same number of operations compared to items up to 4 KB.