You are using AWS SAM to define a Lambda function and configure CodeDeploy to manage deployment patterns. With the new Lambda function working as per expectation which of the following will shift traffic from the original Lambda function to the new Lambda function in the shortest time frame?

Answer options:

A.Canary10Percent5Minutes
B.Linear10PercentEvery10Minutes
C.Canary10Percent15Minutes
D.Linear10PercentEvery5Minute

Correct Answer – A
With the Canary Deployment Preference type, Traffic is shifted in two intervals. With Canary10Percent5Minutes, 10 percent of traffic is shifted in the first interval while remaining all traffic is shifted after 5 minutes.
Option B is incorrect as Linear10PercentEvery10Minutes will add 10 percent traffic linearly to a new version every 10 minutes. So, after 100 minutes all traffic will be shifted to the new version.
Option C is incorrect as Canary10Percent15Minutes will send 10 percent traffic to the new version and 15 minutes later complete deployment by sending all traffic to the new version.
Option D is incorrect as Linear10PercentEvery5Minute will add 10 percent traffic linearly to the new version every 5 minutes. So, after 50 minutes all traffic will be shifted to the new version.
For more information on Deployment Preference Type for AWS SAM templates, refer to the following URL-
https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/automating-updates-to-serverless-apps.html