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Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 154 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional SAP-C02
Question #: 154
Topic #: 1
[All AWS Certified Solutions Architect - Professional SAP-C02 Questions]

A company gives users the ability to upload images from a custom application. The upload process invokes an AWS Lambda function that processes and stores the image in an Amazon S3 bucket. The application invokes the Lambda function by using a specific function version ARN.

The Lambda function accepts image processing parameters by using environment variables. The company often adjusts the environment variables of the Lambda function to achieve optimal image processing output. The company tests different parameters and publishes a new function version with the updated environment variables after validating results. This update process also requires frequent changes to the custom application to invoke the new function version ARN. These changes cause interruptions for users.

A solutions architect needs to simplify this process to minimize disruption to users.

Which solution will meet these requirements with the LEAST operational overhead?

  • A. Directly modify the environment variables of the published Lambda function version. Use the SLATEST version to test image processing parameters.
  • B. Create an Amazon DynamoDB table to store the image processing parameters. Modify the Lambda function to retrieve the image processing parameters from the DynamoDB table.
  • C. Directly code the image processing parameters within the Lambda function and remove the environment variables. Publish a new function version when the company updates the parameters.
  • D. Create a Lambda function alias. Modify the client application to use the function alias ARN. Reconfigure the Lambda alias to point to new versions of the function when the company finishes testing.
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Suggested Answer: D 🗳️
by zhangyu20000 at Jan. 16, 2023, 4:47 p.m.
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tatdatpham
Highly Voted 1 year, 9 months ago
Selected Answer: D
D is correct By using a function alias, the custom application invokes the latest version of the Lambda function without the need to modify the application code every time the company updates the image processing parameters. This reduces the risk of causing interruptions for users.
upvoted 12 times
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masetromain
Highly Voted 1 year, 9 months ago
Selected Answer: D
D. Create a Lambda function alias. Modify the client application to use the function alias ARN. Reconfigure the Lambda alias to point to new versions of the function when the company finishes testing. Creating a Lambda function alias allows the solutions architect to change the version of the Lambda function that the alias points to without modifying the client application. This eliminates the need for frequent updates to the custom application and minimizes disruption to users. The solutions architect can test different parameters by using different versions of the function and reconfigure the alias to point to the new version after validating results. This allows the company to update the image processing parameters without affecting the users.
upvoted 5 times
masetromain
1 year, 9 months ago
Option A: Directly modifying the environment variables of the published Lambda function version would cause all clients to use the updated environment variables immediately and would not allow for testing. Option B: Using DynamoDB to store image processing parameters increases complexity and operational overhead, and it would not eliminate the need for updating the custom application. Option C: Directly coding the image processing parameters within the Lambda function and publishing new versions would not eliminate the need for updating the custom application.
upvoted 2 times
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career360guru
Most Recent 10 months, 1 week ago
Selected Answer: D
Option D has least operational overhead.
upvoted 1 times
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edder
11 months ago
Selected Answer: D
https://docs.aws.amazon.com/lambda/latest/dg/configuration-aliases.html
upvoted 1 times
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SK_Tyagi
1 year, 2 months ago
Selected Answer: D
Look for ALIAS
upvoted 1 times
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NikkyDicky
1 year, 3 months ago
Selected Answer: D
D B is ok, but more overhead
upvoted 1 times
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SkyZeroZx
1 year, 4 months ago
Selected Answer: D
keyword = Lambda ALIAS then D
upvoted 1 times
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mfsec
1 year, 7 months ago
Selected Answer: D
Create a Lambda function alias.
upvoted 1 times
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zhangyu20000
1 year, 9 months ago
D is correct
upvoted 1 times
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