There is a new Lambda Function developed using AWS CloudFormation Templates. Which of the following attributes can be used to test the new Function with migrating 5% of traffic to the new version?

Answer options:

A.aws lambda create-alias --name alias name --function-name function-name \--routing-config AdditionalVersionWeights={"2"=0.05}
B.aws lambda create-alias --name alias name --function-name function-name \--routing-config AdditionalVersionWeights={"2"=5}
C.aws lambda create-alias --name alias name --function-name function-name \--routing-config AdditionalVersionWeights={"2"=0.5}
D.aws lambda create-alias --name alias name --function-name function-name \--routing-config AdditionalVersionWeights={"2"=5%}

Correct Answer – A
Routing-Config parameter of the Lambda alias allows one to point to two different versions of the Lambda function and determine what percentage of incoming traffic is sent to each version. In the above case, a new version will be created to test the new function with 5 % of the traffic, while the original version will be used for the remaining 95% traffic.
Option B is incorrect since 5% of traffic needs to shift to a new function. The routing-config parameter should be 0.05 & not 5.
Option C is incorrect since 5% of traffic needs to shift to a new function. The routing-config parameter should be 0.05 & not 0.5.
Option D is incorrect since 5% of traffic needs to shift to a new function. The routing-config parameter should be 0.05 & not 5%.
For more information on Pointing to the right version of Lambda function in CloudFormation, refer to the following URL-
https://docs.aws.amazon.com/lambda/latest/dg/lambda-traffic-shifting-using-aliases.html