Exam objective
AZ-104Monitor resources in Azure
This objective sits in Monitor and maintain Azure resources, which carries 14% of the Azure Administrator exam. The questions below are original, written from the official objective title above, and each explanation cites the Microsoft Azure page it rests on.
Objective title verbatim from the official objectives. Microsoft Azure exam page ↗
A worked example
Shown solved, with the whole explanation open: this is what every question here carries.
An administrator must identify who created a storage account six months ago. The subscription's activity log shows no entries that old. Which configuration would have preserved that information?
Correct.
Checked against learn.microsoft.com, September 2026Concept
The control-plane audit trail is kept by the platform for a fixed window and then dropped. Anything that must outlive that window has to be exported while it exists, into a store whose retention you control.
Why D
Azure retains activity log events for 90 days and then deletes them; for longer retention you create a diagnostic setting that collects the entries in another location, such as a Log Analytics workspace.
Source
Azure Monitor activity log, checked September 2026Azure retains activity log events for 90 days and then deletes them. You aren't charged for entries during this time, regardless of volume. For more functionality, such as longer retention, create a diagnostic setting and collect the entries in another location based on your needs.
Now you: practice questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
An engineer opens Metrics explorer for a VM, selects Percentage CPU and a 60-day range. The chart renders blank, though the metric is retained 93 days. What is the cause?
Sample question 2 of 3
A key vault's audit logs must reach two Log Analytics workspaces, one per team. The administrator cannot select both in a single diagnostic setting. What should be done?
Sample question 3 of 3
A team queries a Log Analytics workspace for a storage account's resource logs and finds none, although the account's platform metrics appear in Metrics explorer. What explains the missing logs?
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Read the sources
These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.