The answer is to configure Azure Backup with immutable vault and soft delete, as this is the most cost-effective approach for ransomware recovery for Azure VMs with Azure Backup immutable vault. This combination prevents attackers from deleting or altering backups by enforcing a write-once-read-many (WORM) state, while soft delete provides an additional safety net by retaining deleted backup data for a default retention period, allowing full recovery even if the vault is compromised. On the AZ-500 exam, this scenario tests your understanding of backup versus disaster recovery solutions—a common trap is choosing Azure Site Recovery, which is designed for regional failover, not ransomware recovery, or relying on snapshots alone, which malware can delete. Remember the mnemonic “I.S.S.”: Immutable vault, Soft delete, and Snapshots are not enough—this will steer you toward the correct, cost-effective choice.
AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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.
You are deploying a critical application on Azure Virtual Machines that must remain highly available. You need to implement a security solution that ensures the application can recover from a ransomware attack that encrypts all data disks. What is the most cost-effective approach?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure Azure Backup with immutable vault and soft delete.
Azure Backup with immutable vault and soft delete protects against ransomware by preventing deletion and allowing recovery. Option B is correct. Azure Site Recovery is for disaster recovery, not ransomware recovery. Snapshots alone can be deleted by malware. Azure Files share backup is not applicable to VM disks.
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.
✓
Configure Azure Backup with immutable vault and soft delete.
Read the scenario before looking for a memorised answer.
✗
Use Azure Files share with snapshots for the application data.
Why it's wrong here
Azure Files share is not used for VM disk backup; it's for file shares.
✗
Enable Azure Site Recovery for the virtual machines.
Why it's wrong here
ASR is for disaster recovery, not specifically for ransomware recovery.
✗
Take daily snapshots of the disks and store them in the same storage account.
Why it's wrong here
Snapshots in the same account can be deleted by ransomware.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-500 question in full detail.
Identify which AZ-500 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.
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure Azure Backup with immutable vault and soft delete. — Azure Backup with immutable vault and soft delete protects against ransomware by preventing deletion and allowing recovery. Option B is correct. Azure Site Recovery is for disaster recovery, not ransomware recovery. Snapshots alone can be deleted by malware. Azure Files share backup is not applicable to VM disks.
What should I do if I get this AZ-500 question wrong?
Identify which AZ-500 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.
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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