DVA-C02 Question #433: Real Exam Question with Answer & Explanation

Question

A developer needs to deploy the code for a new application on an AWS Lambda function. The application needs a dependency file that is 500 MB to run the business logic. Which solution will meet these requirements?

Options

• ACompress the application code and dependencies into a .zip file. Directly upload the .zip file as a
• BCompress the application code and dependencies into a .zip file. Upload the .zip file to an
• CPackage the application code and dependencies into a container image. Upload the image to an
• DPackage the application code and dependencies into a container image. Push the image to an

Explanation

A 500 MB dependency exceeds Lambda's 250 MB unzipped deployment package limit, so the solution must use a container image pushed to Amazon ECR, which supports images up to 10 GB.

Common mistakes.

• A. Directly uploading a .zip file as a Lambda deployment package is limited to 50 MB zipped and 250 MB unzipped; a 500 MB dependency would exceed the unzipped limit.
• B. Uploading the .zip to S3 and referencing it from Lambda still enforces the 250 MB unzipped size limit, so a 500 MB dependency cannot be deployed this way.
• C. Packaging into a container image is correct, but uploading to Amazon S3 is not the right destination; container images for Lambda must be pushed to Amazon ECR, not S3.

Concept tested. Lambda container image deployment for large dependencies via ECR

Reference. https://docs.aws.amazon.com/lambda/latest/dg/images-create.html

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