Request Unit Cost Analysis Quiz

5 questions • Pass: 70% • +25 pts

Quiz covering Query Performance Optimization

Request Unit Cost Analysis Quiz

5 questions | Pass: 70% | Earn 25 points

Questions in this quiz

A preview of the 5 questions covered. Start the quiz above to answer them, check your score, and read the explanations.

  1. 1

    Which header in an Azure Cosmos DB response provides the Request Unit (RU) cost for a specific operation?

  2. 2

    You are optimizing a query that performs a cross-partition scan. Which action will most effectively reduce the RU cost of this query?

  3. 3

    When analyzing query performance, why does selecting specific properties (e.g., SELECT c.name) instead of using SELECT * reduce RU costs?

  4. 4

    A query is returning a high RU cost despite filtering by the partition key. Which of the following is the most likely cause?

  5. 5

    You have a query that uses an 'ORDER BY' clause on a property that is not included in the composite index. How does this impact the RU cost?