Microsoft DP-420 Exam - Topic 5 Question 63 Discussion

Actual exam question for Microsoft's DP-420 exam

Question #: 63
Topic #: 5

You have an Azure Cosmos DB for NoSQL account1 that is configured for automatic failover. The account1 account has a single read-write region in West US and a and a read region in East US.

You run the following PowerShell command.

What is the effect of running the command?

AA manual failover will occur.

BThe account will be unavailable to writes during the change.

CThe provisioned throughput for account1 will increase.

DThe account will be configured for multi-region writes.

Show Suggested Answer

Suggested Answer: B

You can use the Set-AzCosmosDBAccountRegion cmdlet to update the regions that an Azure Cosmos DB account uses. You can use this cmdlet to add a region or change the region failover order.The cmdlet requires a resource group name, an Azure Cosmos DB account name, and a list of regions in desired failover order1.

For your scenario, based on the PowerShell command, you are using the Set-AzCosmosDBAccountRegion cmdlet to update the regions for an Azure Cosmos DB account named account1 that is configured for automatic failover. The command specifies two regions: West US and East US. The effect of running the command is thatthe account will be configured for multi-region writes.

Multi-region writes is a feature of Azure Cosmos DB that allows you to write data to any region in your account and have it automatically replicated to all other regions. This feature provides high availability and low latency for write operations across multiple regions.To enable multi-region writes, you need to specify at least two regions in your account and set them as write regions2. In your command, you are setting both West US and East US as write regions by using the -IsZoneRedundant parameter with a value of $true for both regions.

by Remedios at Jun 16, 2025, 05:36 AM

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Wilda

2 months ago

No way, I thought it would just switch seamlessly!

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Youlanda

3 months ago

Wait, does that mean the account will be down for a bit?

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Blythe

3 months ago

Totally agree, that's how it works!

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Kenda

3 months ago

Multi-region writes? That's not happening here.

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Carmelina

3 months ago

A manual failover will occur.

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Julio

3 months ago

I vaguely recall that running this command could configure multi-region writes, but I need to double-check that.

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Margurite

4 months ago

I’m a bit confused; I thought the command might increase the provisioned throughput, but that doesn’t seem right here.

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Alesia

4 months ago

I think this is similar to a practice question we did where the account became unavailable for writes during a failover.

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Leslie

4 months ago

I remember something about manual failover, but I'm not entirely sure if that's what this command does.

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Toshia

4 months ago

I'm a bit confused by this one. The question mentions automatic failover, but the command seems to be doing something different. I'll need to really focus on understanding the details to figure out the right answer.

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Maira

4 months ago

Alright, the key information seems to be that the account has a single read-write region and a read region. I'm thinking the command might change the configuration, but I'll need to weigh the options carefully.

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Kattie

5 months ago

Okay, let's see here. The account is configured for automatic failover, so I'm wondering if the command could trigger a manual failover. I'll need to consider the implications of that.

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Ulysses

5 months ago

Hmm, this looks like a tricky one. I'll need to carefully read through the details and think through the possible effects of the PowerShell command.

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Carin

7 months ago

Haha, I love how these Cosmos DB questions always have a bit of a twist. I'm gonna go with B, but I'm secretly hoping the real answer is just 'Summon the Azure Cosmos DB genie and wish for world peace.'

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Kirby

5 months ago

User2: Yeah, B sounds right. No magic allowed in Azure.

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Leonora

6 months ago

User1: I think B too. No genie wishes here.

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Socorro

7 months ago

I'm going with A. A manual failover just seems like the logical outcome of that command. Though I do wonder if the Azure engineers are having a laugh at our expense with these exam questions.

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Nieves

8 months ago

D sounds like the right answer to me. Enabling multi-region writes is a pretty cool feature of Cosmos DB, but I guess it comes with its own set of challenges.

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Benton

7 months ago

Yes, but it's important to consider the potential consistency trade-offs that come with multi-region writes.

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Han

7 months ago

I agree, enabling multi-region writes can definitely improve performance and availability.

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Hester

8 months ago

I'm not sure about that. I think it might be A) A manual failover will occur.

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Norah

8 months ago

Hmm, I think the answer is B. Changing the failover priority will make the account unavailable for writes during the transition. Gotta be careful with those Cosmos DB configs!

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Rochell

7 months ago

It's important to understand the implications of such changes. B does seem like the most logical choice here.

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Effie

7 months ago

Yeah, changing the failover priority can definitely impact availability. Better be cautious with those configurations.

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Nancey

8 months ago

I think you're right, B sounds like the correct answer. Can't afford to have the account unavailable for writes!

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Dominga

8 months ago

I agree with Albina. The command seems to be setting up the account for multi-region writes.

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Albina

8 months ago

I think the answer is D) The account will be configured for multi-region writes.

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