Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 175 discussion

A. Modify the application code to perform exponential backoff when the error is received: This is a cost-effective and recommended approach. Exponential backoff is a standard error-retry strategy where the time between retries gradually increases. This strategy helps to efficiently manage request retries without immediately consuming additional throughput, thus reducing the likelihood of repeatedly hitting the throughput limits. B. Modify the application to use the AWS SDKs for DynamoDB: The AWS SDKs implement best practices, including automatic retry logic with exponential backoff. Using an AWS SDK for DynamoDB can simplify the implementation and is more efficient than directly calling the DynamoDB REST API. This change can help mitigate throughput exceedance errors.

Yes AB is the right set of answers.

Key Words Why They Matter ProvisionedThroughputExceededException Indicates the application is exceeding the provisioned capacity of the DynamoDB table. Periodically Suggests that the issue happens under specific conditions, such as traffic spikes. REST API Implies the application is making direct API calls, possibly without SDK optimizations. Cost-effectively Points towards solutions that avoid increasing DynamoDB capacity (which costs more). Writes to a DynamoDB table Identifies the operation likely causing the throttling issue. Modify application code Indicates that a code change is necessary to handle throttling errors better. Exponential backoff A retry strategy to reduce the impact of throttling. AWS SDKs Built-in solutions for efficient, optimized interactions with DynamoDB.

This is what the exception looks like: "boto.dynamodb2.exceptions.ProvisionedThroughputExceededException: ProvisionedThroughputExceededException: 400 Bad Request {u'message': u'The level of configured provisioned throughput for the table was exceeded. Consider increasing your provisioning level with the UpdateTable API', u'__type': u'com.amazonaws.dynamodb.v20120810#ProvisionedThroughputExceededException'}" You need B since the AWS SDK includes automatic retry logic with exponential backoff specifically designed to deal with this automatically and C since increasing the provisioned level also helps solve this issue.

AB is the correct answer.

Following ChatGPT 3.5, Option A and C Option B (Modify the application to use the AWS SDKs for DynamoDB) is not directly related to resolving throughput issues. It's generally recommended to use the AWS SDKs as they provide more efficient and convenient ways to interact with AWS services, but it may not directly address the ProvisionedThroughputExceededException issue.

A and B. Exponential backoff is a standard error-handling strategy for network applications. The idea is to retry a failed request with increasing delays between each attempt. And the AWS SDKs have built-in support for handling these errors.

A and B: https://www.examtopics.com/discussions/amazon/view/69199-exam-aws-certified-developer-associate-topic-1-question-385/