Question 1

You are designing a globally distributed social media application using Azure Cosmos DB.

Users frequently post updates and immediately refresh their feeds. A user must always see their own posts immediately after writing them. However, it is acceptable if other users across the globe see the post with a slight delay. You need to select a consistency level that meets these requirements while maximizing performance and availability.

Which consistency level should you recommend?

Accepted Answer

Look for the phrase 'user must always see their own posts immediately'. This is the classic definition of 'read-your-own-writes', which maps to Session consistency.

Question 2

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

Accepted Answer

Choosing Strong consistency, which would cause massive latency for a globally distributed social media app because a write must be committed across all regions before acknowledging.

How to approach this question

Full Answer

Common mistakes

Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 4

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