Exam AZ-301 topic 17 question 56 discussion

Actual exam question from Microsoft's AZ-301

Question #: 56
Topic #: 17

You have an Azure subscription. The subscription contains an app that is hosted in the East US, Central Europe, and East Asia regions.
You need to recommend a data-tier solution for the app. The solution must meet the following requirements:
✑ Support multiple consistency levels.
✑ Be able to store at least 1 TB of data.
✑ Be able to perform read and write operations in the Azure region that is local to the app instance.
What should you include in the recommendation?

A. an Azure SQL database in an elastic pool
B. a Microsoft SQL Server Always On availability group on Azure virtual machines
C. an Azure Cosmos DB database
D. Azure Table storage that uses geo-redundant storage (GRS) replication

Show Suggested Answer

Suggested Answer: C 🗳️
Azure Cosmos DB approaches data consistency as a spectrum of choices. This approach includes more options than the two extremes of strong and eventual consistency. You can choose from five well-defined levels on the consistency spectrum.
With Cosmos DB any write into any region must be replicated and committed to all configured regions within the account.
Incorrect Answers:
D: Not able to do local writes.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels-tradeoffs
Design a Business Continuity Strategy

by Shunya at Aug. 11, 2020, 12:03 a.m.

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Shunya

Highly Voted 4 years, 11 months ago

Choice "C" of Cosmos is correct. Consistency is the key word

upvoted 7 times

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us3r

Most Recent 3 years, 5 months ago

Selected Answer: D

cosmos

upvoted 1 times

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Rume

4 years, 1 month ago

Distributed databases that rely on replication for high availability, low latency, or both, must make a fundamental tradeoff between the read ***consistency***, availability, latency, and throughput https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels

upvoted 1 times

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