A company has several Amazon DynamoDB tables in an AWS Region. Each table has more than 100,000 records and was created with default table settings. To reduce costs, the company needs to identify unus

Question

Options

• AIn Amazon CloudWatch, graph the sum of the ReadThrottleEvents metric and the sum of the
• BIn Amazon CloudWatch, graph the sum of the ConsumedReadCapacityUnits metric and the sum
• CChange the provisioned RCUs to 1 for the unused tables. Change the provisioned WCUs to 1 for
• DChange the capacity mode of the unused tables to on-demand mode.
• EChange the table class of the unused tables to DynamoDB Standard-Infrequent Access
• FPurchase a reserved capacity of 1 RCU and 1 WCU for each unused table.

• B
  82% (14)
• C
  6% (1)
• F
  12% (2)

Explanation

By graphing the sum of the ConsumedReadCapacityUnits and ConsumedWriteCapacityUnits metrics for each table over a period of 1 month in CloudWatch, you can identify which tables are receiving low or no traffic. This helps you pinpoint unused tables that can be further optimized. Reducing the provisioned read and write capacity units (RCUs and WCUs) for the unused tables to a low value (such as 1) helps reduce costs while maintaining availability and performance in case the table needs to be used in the future. This approach allows you to minimize the cost of underutilized tables without permanently affecting their availability. Changing the table class to DynamoDB Standard-Infrequent Access (DynamoDB Standard-IA) for the unused tables optimizes costs, as this table class is designed for infrequent access. This option reduces costs for tables that are not frequently accessed while keeping them available if

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