Question 1

You are designing a globally distributed e-commerce application using Azure Cosmos DB.

The application has a shopping cart feature. You have the following requirements for the shopping cart data:
- Users must always be able to read their own latest writes (e.g., if they add an item to the cart, they must see it immediately on the next page load).
- The database must provide high availability and low latency.
- You want to optimize Request Unit (RU) costs compared to the strongest consistency levels.

Which TWO consistency levels meet these requirements? (Select TWO)

Accepted Answer

Identify the requirement 'read your own writes'. Session consistency is designed exactly for this. Stronger consistencies (Bounded Staleness, Strong) also include this guarantee, but Strong violates the cost/latency requirement.

Question 2

What mistakes do candidates make on this AZ-305 question?

Accepted Answer

Selecting Strong consistency, ignoring the requirement to optimize RU costs and maintain low latency (Strong consistency requires synchronous replication across regions).

How to approach this question

Full Answer

Common mistakes

Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 1

More questions from this exam