Your company is planning on using the available services in AWS to completely automate their integration, build and deployment process. They are planning on using AWS CodeBuild to build their artifacts. When using CodeBuild, which of the following files specifies a collection of build commands that can be used by the service during the build process.

Answer options:

A.appspec.yml
B.buildspec.yml
C.buildspec.xml
D.appspec.json

Answer – B
The AWS documentation mentions the following
AWS CodeBuild currently supports building from the following source code repository providers. The source code must contain a build specification (build spec) file, or the build spec must be declared as part of a build project definition. A build spec is a collection of build commands and related settings, in YAML format, that AWS CodeBuild uses to run a build.
For more information on AWS CodeBuild, please refer to the below link:
http://docs.aws.amazon.com/codebuild/latest/userguide/planning.html