The answer is that Network Watcher is not enabled in the region. This is the most likely cause because NSG flow logs rely on the Network Watcher agent to capture and forward network traffic data to the storage account; without Network Watcher enabled in the specific Azure region where the NSG resides, the logging pipeline cannot function, and no logs will be written. On the AZ-305 exam, this tests your understanding of the prerequisite dependencies for monitoring and logging services, often appearing as a trap where candidates overlook regional enablement and instead blame permissions or storage configurations. A common memory tip is to remember that Network Watcher acts as the regional “gatekeeper” for flow logs—if it’s off, the logs can’t flow. Think of it as needing the watcher to watch the flow.
AZ-305 Practice Question: Design identity, governance, and monitoring solutions
This AZ-305 practice question tests your understanding of design identity, governance, and monitoring solutions. 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.
Refer to the exhibit. You are deploying NSG flow logs. After deployment, you notice that no logs are being written to the storage account. What is the most likely cause?
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
✓
Network Watcher is not enabled in the region.
NSG flow logs require Network Watcher to be enabled in the region where the NSG resides. If Network Watcher is not enabled, the flow logs cannot be written to the storage account because the logging pipeline depends on the Network Watcher agent to capture and forward flow data. Enabling Network Watcher in the region resolves this issue.
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.
✓
Network Watcher is not enabled in the region.
Why this is correct
NSG flow logs require Network Watcher to be enabled in the region.
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.
✗
Retention policy is set to 0 days.
Why it's wrong here
Retention is set to 30 days.
✗
The storage account is in a different subscription.
Why it's wrong here
Cross-subscription storage is supported.
✗
The format version is incorrect.
Why it's wrong here
Version 2 is valid.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume the retention policy (0 days) or storage account subscription mismatch is the root cause, but the actual issue is the missing regional Network Watcher dependency, which is a prerequisite for NSG flow logs to function.
Detailed technical explanation
How to think about this question
Network Watcher is a regional service that must be enabled per region to support NSG flow logs, VPN diagnostics, and other network monitoring features. When you enable NSG flow logs, Azure automatically creates a Network Watcher instance in the region if one does not exist, but if the resource provider is not registered or the region is not supported, the logs will fail to be written. In a real-world scenario, if you deploy NSGs in a new region without first enabling Network Watcher, you will see no flow logs until the service is activated.
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-305 question in full detail.
Design identity, governance, and monitoring solutions — This question tests Design identity, governance, and monitoring solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Network Watcher is not enabled in the region. — NSG flow logs require Network Watcher to be enabled in the region where the NSG resides. If Network Watcher is not enabled, the flow logs cannot be written to the storage account because the logging pipeline depends on the Network Watcher agent to capture and forward flow data. Enabling Network Watcher in the region resolves this issue.
What should I do if I get this AZ-305 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: "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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Question Discussion
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