Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Exhibit
Current workspace settings: Workspace: law-prod Retention: 14 days Connected sources: VM guest logs, App Service logs Subscription Activity log export: Not configured Incident note: A user deleted a storage account yesterday, but the team could not search for the deletion event after two weeks.
Based on the exhibit, the support team needs a searchable 90-day history of who deleted Azure resources and when. The current workspace only contains VM guest logs. Which configuration should you add?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Enable guest-level diagnostics on each VM so deletion events are captured.
Guest diagnostics only collect events from inside the operating system. They do not capture subscription-level control-plane actions such as deleting Azure resources.
B
Best answer
Configure a diagnostic setting at the subscription scope to send the Azure Activity log to Log Analytics and retain it for 90 days.
The Azure Activity log records control-plane actions like deletes, updates, and role assignments. Exporting it from the subscription to Log Analytics makes those events searchable, and increasing retention gives the team the required 90-day history.
C
Distractor review
Turn on NSG flow logs for all subnets to capture resource deletions.
NSG flow logs show network traffic patterns. They do not record who deleted a resource or what management action was taken.
D
Distractor review
Store VM backups in the vault and use restore points as an audit trail.
Backups help recover workloads, but they are not an audit source for who performed management operations. Restore points cannot replace the Activity log for investigating deletes.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
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Question 2
You are deploying a stateless web application on Azure virtual machines. The solution must automatically add and remove instances based on CPU demand and allow all instances to be managed as one logical group. Which Azure compute feature should you deploy?
Question 3
You are deploying a Windows Server VM for an internal app. The VM must support Secure Boot and vTPM later, its OS disk must survive host moves, and the team wants the lowest-cost managed disk tier that still behaves like a normal writable OS disk. Which two choices should you make? Select two.
Question 4
You need to deploy several identical virtual machines and ensure that the failure of a single Azure host does not affect all of them. Which feature should you use?
Question 5
You need to connect VNet-Hub and VNet-Spoke so that resources in both virtual networks can communicate privately over the Microsoft backbone. Both virtual networks are in the same region. What should you configure?
Question 6
You need to create a storage account that provides the lowest-cost redundant storage for non-critical data and only needs protection against local disk or server failure within a single datacenter. Which redundancy option should you choose?
FAQ
Questions learners often ask
What does this AZ-104 question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Configure a diagnostic setting at the subscription scope to send the Azure Activity log to Log Analytics and retain it for 90 days. — To investigate who deleted Azure resources, you need the subscription-level Activity log, because it records management-plane actions and the caller associated with them. A diagnostic setting can export that log to a Log Analytics workspace so the events become searchable. Since the current retention is only 14 days, extending retention to 90 days ensures the team can keep and query deletion history long enough for investigations. Why others are wrong: Guest diagnostics, NSG flow logs, and backup restore points do not record control-plane deletions. They are useful for OS events, network traffic, or recovery, but none provide an audit trail for subscription management actions. The requirement is specifically about who deleted Azure resources, so the Activity log is the correct data source.
What should I do if I get this AZ-104 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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