This AZ-104 practice question tests your understanding of monitor and maintain azure resources. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 need to keep Azure activity log data for longer than the default retention period and make it available for analysis. What should you configure?
Diagnostic settings for the activity log
Diagnostic settings let you send activity log data to supported destinations for retention and analysis.
A resource lock on the subscription
Why wrong: A lock does not extend activity log retention.
An availability zone
Why wrong: Availability zones provide resiliency, not log retention.
A scale set autoscale policy
Why wrong: Autoscale policies affect VM instance counts, not activity log storage.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Diagnostic settings for the activity log
The default retention period for Azure activity logs is 90 days. To retain activity log data beyond this period and make it available for analysis (e.g., in a Log Analytics workspace, storage account, or Event Hubs), you must configure diagnostic settings for the activity log. This allows you to stream the log data to a destination of your choice, where you can set custom retention policies.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Diagnostic settings for the activity log
Why this is correct
Diagnostic settings let you send activity log data to supported destinations for retention and analysis.
Related concept
Read the scenario before looking for a memorised answer.
A resource lock on the subscription
Why it's wrong here
A lock does not extend activity log retention.
An availability zone
Why it's wrong here
Availability zones provide resiliency, not log retention.
A scale set autoscale policy
Why it's wrong here
Autoscale policies affect VM instance counts, not activity log storage.
Common exam traps
The trap here is that candidates often confuse the default retention period (90 days) with the ability to extend it via simple settings, not realizing that diagnostic settings are required to route the data to a persistent destination for longer retention and analysis.
Detailed technical explanation
Under the hood, diagnostic settings for the activity log use Azure Monitor's data collection pipeline to route the tenant-level activity log (which includes management plane events) to destinations like Log Analytics workspaces (where you can query with KQL), Azure Storage (for archival with lifecycle management), or Event Hubs (for third-party SIEM integration). A subtle behavior: activity logs are subscription-level by default, but diagnostic settings can also be configured at the resource level for resource-specific logs, though the question specifically targets the activity log.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Monitor and Maintain Azure Resources — This question tests Monitor and Maintain Azure Resources — Read the scenario before looking for a memorised answer..
The correct answer is: Diagnostic settings for the activity log — The default retention period for Azure activity logs is 90 days. To retain activity log data beyond this period and make it available for analysis (e.g., in a Log Analytics workspace, storage account, or Event Hubs), you must configure diagnostic settings for the activity log. This allows you to stream the log data to a destination of your choice, where you can set custom retention policies.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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