The answer is Azure Backup, as it is the fully managed, cloud-based backup solution designed to protect Azure VMs, SQL databases, and on-premises servers. This service is correct because it uses an Azure Backup vault to store recovery points, supports policy-based scheduling for automated backups, and delivers application-consistent backups that ensure data integrity for SQL and other workloads. On the AZ-900 exam, this question tests your understanding of core Azure management services, often appearing alongside other backup-related options like Azure Site Recovery—a common trap since Site Recovery handles disaster recovery and replication, not routine backup. A key memory tip is to associate “Backup” with “backing up data” for retention and recovery, while “Site Recovery” is for failover and replication. For the exam, remember: if the scenario mentions scheduled backups, long-term retention, or protecting on-premises servers in the cloud, Azure Backup is the answer.
AZ-900 Describe Azure architecture and services Practice Question
This AZ-900 practice question tests your understanding of describe azure architecture and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which Azure service provides a fully managed, cloud-based backup solution for protecting Azure VMs, SQL databases, and on-premises servers?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Backup
Azure Backup is the correct service because it provides a fully managed, cloud-based backup solution specifically designed to protect Azure VMs, SQL databases, and on-premises servers. It leverages the Azure Backup vault to store recovery points and supports policy-based scheduling, long-term retention, and application-consistent backups for these workloads.
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.
✗
Azure Site Recovery
Why it's wrong here
Site Recovery provides disaster recovery replication; Azure Backup provides scheduled backup for data protection.
✗
Azure Archive Storage
Why it's wrong here
Archive Storage stores rarely accessed data; Azure Backup is a complete backup management service.
✓
Azure Backup
Why this is correct
Azure Backup provides managed backup for VMs, databases, and on-premises servers to Recovery Services vaults.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Blob Storage snapshots
Why it's wrong here
Blob snapshots are a point-in-time copy feature; Azure Backup is the comprehensive backup management service.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Backup (a backup service for point-in-time recovery) with Azure Site Recovery (a disaster recovery service for replication and failover), especially since both use the Recovery Services vault and are often discussed together in disaster recovery planning.
Detailed technical explanation
How to think about this question
Azure Backup uses the Microsoft Azure Recovery Services (MARS) agent for on-premises Windows servers and the Azure Backup extension for Azure VMs, which coordinates with the VSS writer in Windows to create application-consistent snapshots. For SQL databases, it integrates with the IaaS SQL extension to perform log backups every 5 minutes, enabling point-in-time restore down to the second. In a real-world scenario, an enterprise can back up a hybrid environment—on-premises file servers and Azure VMs—under a single Backup vault, with retention policies ranging from 7 days to 99 years.
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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Backup — Azure Backup is the correct service because it provides a fully managed, cloud-based backup solution specifically designed to protect Azure VMs, SQL databases, and on-premises servers. It leverages the Azure Backup vault to store recovery points and supports policy-based scheduling, long-term retention, and application-consistent backups for these workloads.
What should I do if I get this AZ-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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