A telecom company is using Amazon EBS backed EC2 instances to deploy mobile applications. Data on EBS volumes needs to be backed up every week as per audit guidelines. The company is planning to perform EBS Snapshots every Friday evening at 10 pm. They are planning to automate scheduling using Amazon EventBridge.
Which of the following configurations in Amazon EventBridge can be done to meet this requirement? 

Answer options:

A.Configure a rate expression rule specifying the time of the day to schedule automated EBS snapshots.
B.Configure a cron expression rule specifying a regular interval to schedule automated EBS snapshots.
C.Configure a rate expression rule specifying a regular interval to schedule automated EBS snapshots.
D.Configure a cron expression rule specifying the time of the day to schedule automated EBS snapshots.

Correct Answer: D
Amazon EventBridge can be used for scheduling automated Amazon EBS snapshots. It supports two types of rules: rate expressions rules & cron expressions rules. Rate expression rules can be used to define rules that run regularly, while cron expression rules can be used to define rules that run at a specific time of a day or a week. In the above case, the Amazon EBS snapshot should be scheduled every Friday at 10 pm for which cron expression rules can be defined.
Options A & C are incorrect as with rate expression rules, we can specify a regular interval at which snapshot can be scheduled. These rules do not have fine grain control to trigger at specific times of the day in a week.
Option B is incorrect as the cron expression rule specifying regular intervals is an invalid option. With cron expression rules, we can create rules which can trigger at a specific time of a day or a particular day in a week or month.
For more information on rules with Amazon EventBridge, refer to the following URLs,
https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-scheduled-snapshot.html
https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-schedule-expressions.html