Your team was assigned a task to create a Jenkins job to do the backup for a very complicated system. The Jenkins job will trigger the backup task every week. For the backup itself, there are several steps involved, including running preparation scripts, launching DB snapshots, checking DB snapshots status, running post scripts, etc. A Lambda function can implement each step. Besides, the solution architect expects the running status for each step can be visualized and managed by an AWS owned service. Which service should you use to achieve this requirement?

Answer options:

A.AWS CodePipeline
B.AWS Step Functions
C.AWS Simple Notification Service
D.AWS EventBridge

Correct Answer – B
In this question, it is essential that each step for the backup is visualized in an AWS service. Step Functions can meet the need as it has provided a UI to help understand the execution status for each step in a state machine. For example:
Option A is incorrect: Because CodePipeline is normally used for a CI/CD pipeline rather than a state machine. In this case, the Jenkins job will trigger a backup task in which CodePipeline is unsuitable to be involved.
Option B is CORRECT: Because Step Functions is ideal for managing the various steps, and users can also inspect its visual workflow.
Option C is incorrect: Because SNS can not achieve this requirement by itself. It has to coordinate with other services.
Option D is incorrect: Amazon EventBridge is a serverless event bus to connect applications using data from your own applications, SaaS, and AWS services, which is not a proper service for this scenario.