From d7a6f137e65193c07c2b41fccc176310938240eefc894375fb86319ea16d29e4 Mon Sep 17 00:00:00 2001 From: Baldyga Date: Mon, 2 Nov 2026 16:21:44 +0000 Subject: [PATCH] Added mistakes --- Papers/Practice Exam 3.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Papers/Practice Exam 3.md diff --git a/Papers/Practice Exam 3.md b/Papers/Practice Exam 3.md new file mode 100644 index 0000000..08e519f --- /dev/null +++ b/Papers/Practice Exam 3.md @@ -0,0 +1,21 @@ +# 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. +---