Microsoft Exam DP-420 Topic 1 Question 42 Discussion

Actual exam question for Microsoft's DP-420 exam

Question #: 42
Topic #: 1

You have a container m an Azure Cosmos DB for NoSQL account. The container stores data about families. Data about parents, children, and pets are stored as separate documents.

Each document contains the address of each family. Members of the same family share the same partition key named family Id

You need to update the address for each member of the same family that share the same address. The solution must meet the following requirements:

* Be atomic consistent isolated, and durable (ACID).

* Provide the lowest latency.

What should you do?

AUpdate the document of each family member by using a transactional batch operation.

BUpdate the document of each family member separately by using a patch operation.

CUpdate the document of each family member separately and set the consistency level to strong.

Show Suggested Answer

Suggested Answer: A

by Abraham at Jul 02, 2024, 12:23 PM

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Stacey

11 months ago

I love how they sneak in that 'lowest latency' requirement. Very sneaky, Azure Cosmos DB. Option A gets my vote.

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Sherrell

11 months ago

Option C seems like overkill. Strong consistency is great, but do we really need it for a simple address update? A is the clear winner here.

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Miesha

10 months ago

B) Definitely, it's the most efficient way to update the address for each family member.

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Janessa

10 months ago

A) It's the best option for updating multiple documents with the same partition key.

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Kate

10 months ago

B) I agree, using a transactional batch operation ensures atomicity and consistency.

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Lewis

10 months ago

A) Update the document of each family member by using a transactional batch operation.

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Cordelia

11 months ago

That's a good point, Elizabeth. However, using a transactional batch operation would provide the lowest latency as well.

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Elizabeth

11 months ago

But wouldn't updating the document of each family member separately with strong consistency also meet the requirements?

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Karan

11 months ago

I agree with Cordelia. Using a transactional batch operation ensures atomicity and consistency.

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Annmarie

12 months ago

I was leaning towards option B, but the requirement for low latency makes me think A might be the better choice. Batched operations should be faster.

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Kiley

10 months ago

C) Setting the consistency level to strong might also help ensure data integrity.

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Iluminada

11 months ago

A) Definitely, using a transactional batch operation ensures atomicity and consistency.

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Xochitl

11 months ago

B) I agree, batch operations are usually faster and would meet the low latency requirement.

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Katheryn

11 months ago

A) Update the document of each family member by using a transactional batch operation.

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Cordelia

12 months ago

I think we should update the document of each family member by using a transactional batch operation.

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Lucy

12 months ago

Hmm, I think option A is the way to go. Updating all family members in a single transaction seems like the best way to ensure ACID compliance.

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Caprice

11 months ago

Updating all family members in a single transaction does seem like the most efficient way to go.

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Thomasena

11 months ago

I agree, option A is the best choice for ACID compliance.

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Darnell

12 months ago

Updating all family members in a single transaction does seem like the most efficient way to go.

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Lavina

12 months ago

I agree, option A is the best choice for ACID compliance.

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