Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB — Question 10

You have an Azure Cosmos DB Core (SQL) API account that has multiple write regions.
You need to receive an alert when requests that target the database exceed the available request units per second (RU/s).
Which Azure Monitor signal should you use?

Answer options

• A. Data Usage
• B. Metadata Requests
• C. Region Removed
• D. Region Added

Correct answer: B

Explanation

The correct answer is B, as the 'Metadata Requests' signal specifically tracks operations that involve metadata and can indicate when requests exceed the RU/s limit. Options A, C, and D do not focus on the request units directly; 'Data Usage' tracks overall data consumption, while 'Region Removed' and 'Region Added' are concerned with changes in region configurations, not request limits.