Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB — Question 17

You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1.

Backups for account1 have the following configurations:

• Interval: 2 hours
• Retention period: 4 days

You need to estimate the charges associated with the retention of the backups.

How many copies of the backups will incur additional charges?

Answer options

• A. 8
• B. 12
• C. 46
• D. 48

Correct answer: C

Explanation

The backups occur every 2 hours, which results in 12 backups per day. Over a 4-day retention period, this totals 48 backups. However, since the most recent backup is not charged for retention, we only account for the 46 earlier backups that incur additional charges.