Question 452 of 982

Identify considerations for relational data on Azure →mediumMultiple ChoiceObjective-mapped

Quick Answer

Azure SQL Database (single database) is the correct choice because it is a fully managed PaaS solution that provides built-in read scale-out by automatically offloading read traffic to read-only replicas, enabling horizontal scaling for read-heavy workloads without manual configuration. This works through Active Geo-Replication and failover groups, which create secondary replicas that handle read queries while the primary replica manages writes, all while maintaining high availability with automatic failover and a 99.99% SLA. On the DP-900 exam, this concept tests your understanding of how PaaS database services differ from IaaS options like SQL Server on VMs, where you would need to manually configure Always On Availability Groups for read scale-out. A common trap is confusing Azure SQL Database’s built-in read scale-out with Azure SQL Managed Instance, which does not support read-only replicas for read offloading. Memory tip: think “single database, single replica for reads” — the word “single” in Azure SQL Database signals its unique read scale-out capability.

DP-900 Practice Question: Identify considerations for relational data on Azure

This DP-900 practice question tests your understanding of identify considerations for relational data on azure. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.

A company is evaluating deployment options for a new business application that requires a fully managed relational database. The application must support high availability with automatic failover and horizontal scaling for read-heavy workloads. The development team wants to minimize administrative overhead and prefers a PaaS solution that offers built-in read scale-out. Which Azure SQL deployment option should they choose?

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
SQL Server on Azure Virtual Machines
Why wrong: This is an IaaS option that requires manual configuration of high availability and read replicas. It does not offer built-in read scale-out as a managed feature.
B
Azure SQL Managed Instance
Why wrong: While it supports read scale-out in the Business Critical tier, it is designed for near-100% compatibility with on-premises SQL Server, often for larger databases. It incurs more administrative overhead than a single database, and the question emphasizes minimizing overhead.
C
Azure SQL Database (single database)
This is a fully managed PaaS service that, in the Premium or Business Critical tiers, provides up to four readable secondary replicas for read scale-out. It also supports automatic failover with zone-redundant configurations, meeting the high availability and read scaling needs with minimal administration.
D
Azure SQL Database Elastic Pool
Why wrong: Elastic pools are meant for managing multiple databases with fluctuating resource demands, not for scaling read workloads of a single database. They do not provide read replicas.

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

✓

Azure SQL Database (single database)

Azure SQL Database (single database) is the correct choice because it is a fully managed PaaS relational database that supports high availability with automatic failover (99.99% SLA) and built-in read scale-out via read-only replicas (Active Geo-Replication and failover groups). It minimizes administrative overhead by handling patching, backups, and replication automatically, and it allows horizontal scaling for read-heavy workloads by offloading read traffic to secondary replicas without manual configuration.

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.

✗
SQL Server on Azure Virtual Machines
Why it's wrong here
This is an IaaS option that requires manual configuration of high availability and read replicas. It does not offer built-in read scale-out as a managed feature.
✗
Azure SQL Managed Instance
Why it's wrong here
While it supports read scale-out in the Business Critical tier, it is designed for near-100% compatibility with on-premises SQL Server, often for larger databases. It incurs more administrative overhead than a single database, and the question emphasizes minimizing overhead.
✓
Azure SQL Database (single database)
Why this is correct
This is a fully managed PaaS service that, in the Premium or Business Critical tiers, provides up to four readable secondary replicas for read scale-out. It also supports automatic failover with zone-redundant configurations, meeting the high availability and read scaling needs with minimal administration.
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.
✗
Azure SQL Database Elastic Pool
Why it's wrong here
Elastic pools are meant for managing multiple databases with fluctuating resource demands, not for scaling read workloads of a single database. They do not provide read replicas.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse Azure SQL Managed Instance's high compatibility with full PaaS features, overlooking that it does not support built-in read scale-out, which is a key requirement for read-heavy workloads.

Detailed technical explanation

How to think about this question

Under the hood, Azure SQL Database uses a quorum-based commit model and automatic page replication across three replicas in the same region to achieve high availability, with failover occurring in under 10 seconds. For read scale-out, you can enable the 'Read Scale-out' feature (via the `AllowReadScaleOut` property) to route read-only queries to a secondary replica, which uses snapshot isolation to avoid blocking writes—this is ideal for reporting or analytics workloads that can tolerate slightly stale data. In a real-world scenario, a retail application with heavy product catalog reads could offload those queries to a read-only replica, while write operations (e.g., order placement) continue on the primary, improving overall throughput without additional infrastructure management.

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.

TExam Day Tips

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

An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Related DP-900 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Describe core data concepts practice questions

Practise DP-900 questions linked to Describe core data concepts.

Describe an analytics workload on Azure practice questions

Practise DP-900 questions linked to Describe an analytics workload on Azure.

Identify considerations for relational data on Azure practice questions

Practise DP-900 questions linked to Identify considerations for relational data on Azure.

Describe considerations for working with non-relational data on Azure practice questions

Practise DP-900 questions linked to Describe considerations for working with non-relational data on Azure.

DP-900 fundamentals practice questions

Practise DP-900 questions linked to DP-900 fundamentals.

DP-900 scenario practice questions

Practise DP-900 questions linked to DP-900 scenario.

DP-900 troubleshooting practice questions

Practise DP-900 questions linked to DP-900 troubleshooting.

Practice this exam

Start a free DP-900 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

DP-900 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this DP-900 question test?

Identify considerations for relational data on Azure — This question tests Identify considerations for relational data on Azure — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Azure SQL Database (single database) — Azure SQL Database (single database) is the correct choice because it is a fully managed PaaS relational database that supports high availability with automatic failover (99.99% SLA) and built-in read scale-out via read-only replicas (Active Geo-Replication and failover groups). It minimizes administrative overhead by handling patching, backups, and replication automatically, and it allows horizontal scaling for read-heavy workloads by offloading read traffic to secondary replicas without manual configuration.

What should I do if I get this DP-900 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

This DP-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-900 exam.