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Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 246 discussion

Exam question from Amazon's AWS Certified Developer - Associate DVA-C02
Question #: 246
Topic #: 1
[All AWS Certified Developer - Associate DVA-C02 Questions]

An online sales company is developing a serverless application that runs on AWS. The application uses an AWS Lambda function that calculates order success rates and stores the data in an Amazon DynamoDB table. A developer wants an efficient way to invoke the Lambda function every 15 minutes.

Which solution will meet this requirement with the LEAST development effort?

  • A. Create an Amazon EventBridge rule that has a rate expression that will run the rule every 15 minutes. Add the Lambda function as the target of the EventBridge rule.
  • B. Create an AWS Systems Manager document that has a script that will invoke the Lambda function on Amazon EC2. Use a Systems Manager Run Command task to run the shell script every 15 minutes.
  • C. Create an AWS Step Functions state machine. Configure the state machine to invoke the Lambda function execution role at a specified interval by using a Wait state. Set the interval to 15 minutes.
  • D. Provision a small Amazon EC2 instance. Set up a cron job that invokes the Lambda function every 15 minutes.
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Suggested Answer: A 🗳️
by LemonGremlin at Oct. 27, 2023, 9:42 p.m.
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65703c1
5 months, 1 week ago
Selected Answer: A
A is the correct answer.
upvoted 2 times
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SerialiDr
9 months, 1 week ago
Selected Answer: A
Amazon EventBridge (formerly known as CloudWatch Events) allows you to set up a rule with a specific schedule using cron or rate expressions. In this case, a rate expression of rate(15 minutes) can be used. EventBridge rules can directly target a Lambda function, making this a straightforward and low-effort solution to execute the function at regular intervals.
upvoted 3 times
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Claire_KMT
1 year ago
A. Create an Amazon EventBridge rule that has a rate expression that will run the rule every 15 minutes. Add the Lambda function as the target of the EventBridge rule.
upvoted 3 times
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didorins
1 year ago
Selected Answer: A
Run Lambda as cron = Event Bridge
upvoted 4 times
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LemonGremlin
1 year ago
Selected Answer: A
option A is the most efficient and least development effort option for invoking the Lambda function every 15 minutes, as it leverages Amazon EventBridge's built-in scheduling capabilities and is fully serverless.
upvoted 4 times
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