The answer is that the 'Guest Configuration' extension is not installed on the customer's VMs. This is the most likely reason you cannot see the regulatory compliance dashboard for customer subscriptions in Azure Lighthouse, because Microsoft Defender for Cloud relies on the Azure Policy Guest Configuration extension to collect the in-guest settings and patch data required to populate compliance standards like CIS or NIST. Without this extension auto-provisioned in the delegated subscription, the dashboard remains empty even though Azure Lighthouse and Defender for Cloud are correctly configured. On the AZ-500 exam, this question tests your understanding of how delegated resource management interacts with Defender for Cloud’s compliance features—a common trap is assuming the issue is with Azure Lighthouse delegation or a missing Log Analytics workspace, but the real blocker is the missing Guest Configuration agent. Remember the mnemonic: “No Guest, no compliance list”—the Guest Configuration extension is the key that unlocks the regulatory dashboard for customer tenants.
AZ-500 Practice Question: Secure Azure using Microsoft Defender for Cloud and Microsoft Sentinel
This AZ-500 practice question tests your understanding of secure azure using microsoft defender for cloud and microsoft sentinel. 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 manage a multi-tenant environment using Azure Lighthouse. You need to use Microsoft Defender for Cloud to monitor security posture across customer tenants. However, you cannot see the regulatory compliance dashboard for customer subscriptions. What is the most likely reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The 'Guest Configuration' extension is not installed on the customer's VMs.
Option B is correct because the regulatory compliance dashboard requires the Azure Policy Guest Configuration extension, which may not be auto-provisioned in delegated subscriptions. Option A (Azure Lighthouse not configured) is possible but less specific. Option C (tier) is not the issue. Option D (Log Analytics) is not required.
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 Lighthouse is not configured for the customer tenants.
Why it's wrong here
If Lighthouse is configured, you can see subscriptions.
✗
Defender for Cloud is not enabled on the customer subscriptions.
Why it's wrong here
Could be enabled but still missing guest config.
✗
The Log Analytics agent is not deployed.
Why it's wrong here
Not required for compliance dashboard.
✓
The 'Guest Configuration' extension is not installed on the customer's VMs.
Why this is correct
Correct: needed for compliance.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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 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-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 Azure using Microsoft Defender for Cloud and Microsoft Sentinel — This question tests Secure Azure using Microsoft Defender for Cloud and Microsoft Sentinel — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The 'Guest Configuration' extension is not installed on the customer's VMs. — Option B is correct because the regulatory compliance dashboard requires the Azure Policy Guest Configuration extension, which may not be auto-provisioned in delegated subscriptions. Option A (Azure Lighthouse not configured) is possible but less specific. Option C (tier) is not the issue. Option D (Log Analytics) is not required.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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