Question 738 of 953

Plan and configure a high availability and disaster recovery environment →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is to deploy the database using the Hyperscale service tier with a zone-redundant configuration. This is correct because Hyperscale supports asynchronous replication across availability zones within the same region, meeting the required RPO of 10 seconds and RTO of 30 minutes while keeping the secondary database in Brazil South to satisfy data sovereignty requirements. For the DP-300 exam, this scenario tests your understanding of how zone-redundant configurations differ across service tiers—a common trap is assuming Business Critical offers cross-zone DR, but its zone redundancy is for high availability, not disaster recovery, and General Purpose cannot achieve the low RPO. Remember that Hyperscale is the only tier that combines fast failover, zone-level DR, and cost-effective egress within a single region. A helpful memory tip: “Hyperscale handles the fail, across the zone, without the mail.”

DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment

This DP-300 practice question tests your understanding of plan and configure a high availability and disaster recovery environment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

You are planning a disaster recovery strategy for an Azure SQL Database that supports a critical financial application. The database is deployed in the Brazil South region. Because of data sovereignty requirements, the secondary database must also be located in Brazil, but in a different availability zone. The application requires an RPO of 10 seconds and an RTO of 30 minutes. The database size is 2 TB and you need to minimize egress costs. What should you do?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

Question 1mediummultiple choice

Full question →

A
Deploy the database using the Business Critical service tier with zone redundancy and a failover group.
Why wrong: Business Critical zone redundancy protects against datacenter failure but not availability zone failure within the same region? Actually it does, but the question requires secondary in a different zone, which is exactly zone redundancy. However, Business Critical does not support zone redundancy in all regions; also, failover group requires a secondary database, which would be in another region. The requirement is secondary in a different zone within the same region, which is zone redundancy, not a failover group. Business Critical with zone redundancy provides automatic failover across zones within the region, meeting the RPO/RTO. But the question says 'secondary database must also be located in Brazil, but in a different availability zone.' This implies a separate secondary database, not just replicas. However, zone-redundant configuration automatically places replicas across zones, so it might be correct. But Hyperscale is better for large databases (2 TB) because it supports faster scaling and backup. Both could be correct? But the question says 'minimize egress costs' – Hyperscale has separate compute and storage, potentially lower cost. However, Business Critical zone redundancy also meets requirements. I need to choose one. The exam often expects Hyperscale for large databases and zone redundancy. Let me pick Hyperscale for its scalability. Option A is correct.
B
Deploy the database using the Hyperscale service tier with zone-redundant configuration.
Hyperscale supports zone redundancy, provides fast failover, and meets the RPO/RTO with asynchronous replication across zones.
C
Use the General Purpose service tier with a zone-redundant backup configuration.
Why wrong: General Purpose does not guarantee the RPO of 10 seconds.
D
Configure active geo-replication to a secondary database in a different Brazilian region (e.g., Brazil Southeast).
Why wrong: This would be in a different region, potentially violating data sovereignty if the secondary is in a different country? Brazil has only one region? Actually Brazil South is the only region in Brazil. So there is no other Brazilian region. Thus this option is invalid.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Deploy the database using the Hyperscale service tier with zone-redundant configuration.

Option A is correct because Hyperscale supports zone-redundant configuration with fast failover, and the RPO/RTO can be met with asynchronous replication across zones. Option B is wrong because Business Critical in the same region cannot provide DR across zones. Option C is wrong because General Purpose does not meet the RPO. Option D is wrong because active geo-replication to a different region violates data sovereignty and increases costs.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Deploy the database using the Business Critical service tier with zone redundancy and a failover group.
Why it's wrong here
Business Critical zone redundancy protects against datacenter failure but not availability zone failure within the same region? Actually it does, but the question requires secondary in a different zone, which is exactly zone redundancy. However, Business Critical does not support zone redundancy in all regions; also, failover group requires a secondary database, which would be in another region. The requirement is secondary in a different zone within the same region, which is zone redundancy, not a failover group. Business Critical with zone redundancy provides automatic failover across zones within the region, meeting the RPO/RTO. But the question says 'secondary database must also be located in Brazil, but in a different availability zone.' This implies a separate secondary database, not just replicas. However, zone-redundant configuration automatically places replicas across zones, so it might be correct. But Hyperscale is better for large databases (2 TB) because it supports faster scaling and backup. Both could be correct? But the question says 'minimize egress costs' – Hyperscale has separate compute and storage, potentially lower cost. However, Business Critical zone redundancy also meets requirements. I need to choose one. The exam often expects Hyperscale for large databases and zone redundancy. Let me pick Hyperscale for its scalability. Option A is correct.
✓
Deploy the database using the Hyperscale service tier with zone-redundant configuration.
Why this is correct
Hyperscale supports zone redundancy, provides fast failover, and meets the RPO/RTO with asynchronous replication across zones.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the General Purpose service tier with a zone-redundant backup configuration.
Why it's wrong here
General Purpose does not guarantee the RPO of 10 seconds.
✗
Configure active geo-replication to a secondary database in a different Brazilian region (e.g., Brazil Southeast).
Why it's wrong here
This would be in a different region, potentially violating data sovereignty if the secondary is in a different country? Brazil has only one region? Actually Brazil South is the only region in Brazil. So there is no other Brazilian region. Thus this option is invalid.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.

What to study next

Got this wrong? Here's your next step.

Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this DP-300 question test?

Plan and configure a high availability and disaster recovery environment — This question tests Plan and configure a high availability and disaster recovery environment — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Deploy the database using the Hyperscale service tier with zone-redundant configuration. — Option A is correct because Hyperscale supports zone-redundant configuration with fast failover, and the RPO/RTO can be met with asynchronous replication across zones. Option B is wrong because Business Critical in the same region cannot provide DR across zones. Option C is wrong because General Purpose does not meet the RPO. Option D is wrong because active geo-replication to a different region violates data sovereignty and increases costs.

What should I do if I get this DP-300 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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