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Amazon DVA-C02 Exam - Topic 2 Question 63 Discussion

Actual exam question for Amazon's DVA-C02 exam
Question #: 63
Topic #: 2
[All DVA-C02 Questions]

A developer is deploying an AWS Lambda function The developer wants the ability to return to older versions of the function quickly and seamlessly.

How can the developer achieve this goal with the LEAST operational overhead?

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Suggested Answer: B

A function alias is a pointer to a specific Lambda function version. You can use aliases to create different environments for your function, such as development, testing, and production. You can also use aliases to perform blue/green deployments by shifting traffic between two versions of your function gradually. This way, you can easily roll back to a previous version if something goes wrong, without having to redeploy your code or change your configuration. Reference:AWS Lambda function aliases


by Yvonne at Apr 07, 2026, 06:45 PM

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Troy
13 days ago
I disagree, A seems more robust for blue/green.
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Mammie
18 days ago
B is the way to go! Function aliases are super handy.
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Lashanda
1 month ago
I think using AWS CodePipeline might be overkill for just rolling back to older versions. Aliases sound simpler.
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Mitzie
1 month ago
I feel like we had a practice question about blue/green deployments, but that seemed more complex than what’s needed here.
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Truman
1 month ago
I’m not entirely sure, but I think maintaining deployment packages in S3 could be more work than just using aliases.
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Tora
2 months ago
I remember we discussed using function aliases in class. It seems like a straightforward way to manage versions without too much hassle.
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