- A
Microsoft Purview Audit (Standard)
Why wrong: Audit (Standard) retains logs for 90 days but does not provide custom alert rules. It cannot meet the requirement for custom alerting.
- B
Microsoft Purview Audit (Premium)
Audit (Premium) includes longer retention (up to 1 year by default) and supports creating custom alert policies for specific events. It meets both requirements.
- C
Microsoft Purview Compliance Manager
Why wrong: Compliance Manager helps assess compliance posture but does not log admin actions or create alerts based on audit logs.
- D
Microsoft 365 Defender portal
Why wrong: The Defender portal provides security incident response capabilities but does not specifically handle audit logging or custom alert rules for admin actions—that is managed by Purview Audit.
MS-900 Practice Question: Describe security, compliance, privacy, and trust in Microsoft 365
This MS-900 practice question tests your understanding of describe security, compliance, privacy, and trust in microsoft 365. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: audit (Premium) provides audit log retention for up to 1 year by default.. 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.
A multinational corporation must ensure that all Microsoft 365 admin actions—such as adding a new user or changing a role—are recorded and searchable for at least 90 days. They also need to create custom alert rules to notify the security team when critical events occur, like disabling multi-factor authentication. Which Microsoft Purview solution should they use to meet both requirements?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Microsoft Purview Audit (Premium)
Microsoft Purview Audit (Premium) is the correct solution because it provides 1-year default retention of audit logs (extendable to 10 years) and supports custom alert policies that trigger notifications when specific events occur, such as disabling multi-factor authentication. Standard Audit only retains logs for 90 days and lacks the ability to create custom alert rules, making Premium the only option that satisfies both requirements.
Key principle: Audit (Premium) provides audit log retention for up to 1 year by default.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Microsoft Purview Audit (Standard)
Why it's wrong here
Audit (Standard) retains logs for 90 days but does not provide custom alert rules. It cannot meet the requirement for custom alerting.
- ✓
Microsoft Purview Audit (Premium)
Why this is correct
Audit (Premium) includes longer retention (up to 1 year by default) and supports creating custom alert policies for specific events. It meets both requirements.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Audit (Premium) provides audit log retention for up to 1 year by default.
- ✗
Microsoft Purview Compliance Manager
Why it's wrong here
Compliance Manager helps assess compliance posture but does not log admin actions or create alerts based on audit logs.
- ✗
Microsoft 365 Defender portal
Why it's wrong here
The Defender portal provides security incident response capabilities but does not specifically handle audit logging or custom alert rules for admin actions—that is managed by Purview Audit.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Audit (Standard) with Audit (Premium) because both record admin actions, but they overlook that Standard's 90-day retention and lack of custom alert rules fail the requirement for searchable logs beyond 90 days and proactive notifications.
Detailed technical explanation
How to think about this question
Under the hood, Audit (Premium) uses the Unified Audit Log (UAL) with extended schema to capture high-value events like disabling MFA, and it integrates with Microsoft 365 Defender's alert policies to trigger custom notifications via email or automated actions. A subtle behavior is that custom alert rules in Audit (Premium) can be scoped to specific workloads (e.g., Azure AD, Exchange) and support real-time alerts with a latency of typically under 10 minutes, whereas Standard Audit only provides basic event recording without alerting capabilities.
KKey Concepts to Remember
- Audit (Premium) provides audit log retention for up to 1 year by default.
- Audit (Premium) supports creating custom alert policies based on audit events.
- It allows for granular control over what events trigger security notifications.
- Audit (Premium) is essential for advanced forensic investigations and compliance.
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
Audit (Premium) provides audit log retention for up to 1 year by default.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review audit (Premium) provides audit log retention for up to 1 year by default., then practise related MS-900 questions on the same topic to reinforce the concept.
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Describe security, compliance, privacy, and trust in Microsoft 365 — study guide chapter
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FAQ
Questions learners often ask
What does this MS-900 question test?
Describe security, compliance, privacy, and trust in Microsoft 365 — This question tests Describe security, compliance, privacy, and trust in Microsoft 365 — Audit (Premium) provides audit log retention for up to 1 year by default..
What is the correct answer to this question?
The correct answer is: Microsoft Purview Audit (Premium) — Microsoft Purview Audit (Premium) is the correct solution because it provides 1-year default retention of audit logs (extendable to 10 years) and supports custom alert policies that trigger notifications when specific events occur, such as disabling multi-factor authentication. Standard Audit only retains logs for 90 days and lacks the ability to create custom alert rules, making Premium the only option that satisfies both requirements.
What should I do if I get this MS-900 question wrong?
Review audit (Premium) provides audit log retention for up to 1 year by default., then practise related MS-900 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Audit (Premium) provides audit log retention for up to 1 year by default.
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Last reviewed: Jun 11, 2026
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