The developers in the operations department want to use an IDE to run, test and debug code for Lambda functions. Which AWS service is the most appropriate?

Answer options:

A.AWS Lambda
B.AWS CodeDeploy
C.AWS CodeCommit
D.AWS Cloud9

Correct Answer: D
The AWS Cloud9 service is the most appropriate service to utilize on the given options to write code, typically for the components of microservices, as well as run, test and debug the code. AWS Cloud9 IDE is accessed via the web browser and has a customizable interface to suit the developer’s preferred runtime and other preferences.
https://docs.aws.amazon.com/cloud9/latest/user-guide/welcome.html
Option A is INCORRECT because AWS Lambda is ideal for functions, purpose-specific logic that performs repetitive processes. Given the dynamic nature of the microservice, Lambda functions would not be the most appropriate option.
Option B is INCORRECT because AWS CodeDeploy is ideal for deploying software and not building and testing it.
Option C is INCORRECT because AWS CodeCommit is ideal for securely storing and privately managing software development assets such as binary files and source code. It is not the most appropriate AWS service to meet the requirements of the use case.