Which AWS service provides an in-memory cache specifically designed for Amazon DynamoDB to improve read performance?

Amazon DynamoDB Accelerator (DAX)

In AWS, what does the term 'concurrency' refer to when applied to AWS Lambda functions?

The total number of invocations over a 24-hour period

The number of requests that can be processed simultaneously by a function

The maximum execution time allowed for a function

The amount of memory allocated to a function instance

What is the purpose of a subscription filter policy in Amazon SNS?

To filter messages sent to a subscriber based on message attributes

To increase the maximum message size

To change the delivery protocol of a subscription

When determining the minimum compute power needed for an EC2 instance, which of the following is a primary workload characteristic to consider?

The color scheme of the application UI

The number of developers on the team

AWSCertified Developer - Associate

Domain 4Objective 3

Task 3: Optimize Applications by Using AWS Services and Features DVA-C02 Practice Questions (Page 1)

Part of the Content Domain 4: Troubleshooting and Optimization domain, which accounts for 18% of the DVA-C02 exam. AWS does not publish an official question count, but from its 130-minute exam (~50–85 total, ~9–15 in this domain), expect 3–5 from this objective — we provide 18 practice questions to prepare you well beyond it. (estimate)

18questions here

4free pages

9concepts

18%of the exam

Questions 1–5

1foundation · easy
Which AWS service provides an in-memory cache specifically designed for Amazon DynamoDB to improve read performance?
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2foundation · easy
In AWS, what does the term 'concurrency' refer to when applied to AWS Lambda functions?
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3foundation · easy
What is the purpose of a subscription filter policy in Amazon SNS?
Select an answer first
4foundation · easy
Which AWS service uses read and write capacity units to represent the concurrency of operations it can handle?
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5foundation · easy
When determining the minimum compute power needed for an EC2 instance, which of the following is a primary workload characteristic to consider?
Select an answer first

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