A Developer Has Written an Application That Writes Data to Amazon

question 77

Multiple Choice

A developer has written an application that writes data to Amazon DynamoDB. The DynamoDB table has been configured to use conditional writes. During peak usage times, writes are failing due to a ConditionalCheckFailedException error. How can the developer increase the application's reliability when multiple clients are attempting to write to the same record?

• A) Write the data to an Amazon SNS topic.
• B) Increase the amount of write capacity for the table to anticipate short-term spikes or bursts in write operations.
• C) Implement a caching solution, such as DynamoDB Accelerator or Amazon ElastiCache.
• D) Implement error retries and exponential backoff with jitter.

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