The answer is Audit (Premium) because it is the only Microsoft Purview solution that captures the detailed forensic logging required for mailbox access, administrator mailbox searches, and changes to email forwarding rules, along with supporting up to one year of retention. Audit (Standard) logs basic events and retains them for only 90 days, making it insufficient for deep security investigations into high-value, user-specific actions. On the SC-900 exam, this distinction tests your understanding of how Microsoft 365 audit capabilities map to compliance and investigation needs—a common trap is confusing Audit (Standard) with Audit (Premium) when the question emphasizes “detailed forensic logs” and “long retention.” Remember that Premium unlocks the granularity for mailbox and admin actions, while Standard covers only the surface. A helpful memory tip: think “Premium for the Premium actions”—if the scenario involves sensitive mailbox operations or extended retention beyond 90 days, Audit (Premium) is the required choice.
SC-900 Practice Question: Describe the capabilities of Microsoft compliance solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft compliance solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A security team needs to investigate a potential data breach in Microsoft 365. They require detailed forensic logs showing every instance of mailbox access, mailbox search performed by administrators, and changes to email forwarding rules in Exchange Online. The logs must be retained for 1 year. Which Microsoft Purview solution should they use?
Why wrong: Audit (Standard) logs fewer event types and retains logs for only 90 days, insufficient for the detailed forensic requirements and 1-year retention.
B
Audit (Premium)
Audit (Premium) logs high-value events like mailbox access and forwarding rule changes, and supports up to 1-year retention, making it the correct choice.
C
eDiscovery (Standard)
Why wrong: eDiscovery (Standard) is used to search and hold content for legal cases, not to provide detailed forensic audit logs of administrator actions.
D
eDiscovery (Premium)
Why wrong: eDiscovery (Premium) adds advanced analytics and review capabilities for legal cases, but does not log administrative actions or provide long-term audit retention.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Audit (Premium)
Audit (Premium) is required because the question specifies detailed forensic logs for mailbox access, administrator mailbox searches, and changes to email forwarding rules—all of which are high-value, user-specific events that are only captured by Audit (Premium). Audit (Standard) logs basic events but lacks the granularity for these specific operations, and it retains logs for only 90 days by default, whereas Audit (Premium) supports up to 1 year of retention. eDiscovery solutions are for searching and exporting content, not for continuous logging of administrative actions.
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.
✗
Audit (Standard)
Why it's wrong here
Audit (Standard) logs fewer event types and retains logs for only 90 days, insufficient for the detailed forensic requirements and 1-year retention.
✓
Audit (Premium)
Why this is correct
Audit (Premium) logs high-value events like mailbox access and forwarding rule changes, and supports up to 1-year retention, making it the correct choice.
Related concept
Read the scenario before looking for a memorised answer.
✗
eDiscovery (Standard)
Why it's wrong here
eDiscovery (Standard) is used to search and hold content for legal cases, not to provide detailed forensic audit logs of administrator actions.
✗
eDiscovery (Premium)
Why it's wrong here
eDiscovery (Premium) adds advanced analytics and review capabilities for legal cases, but does not log administrative actions or provide long-term audit retention.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse eDiscovery (which is for searching and exporting content) with auditing (which is for logging events), and they underestimate the specific event types that require Audit (Premium) over Audit (Standard).
Detailed technical explanation
How to think about this question
Audit (Premium) leverages the Microsoft 365 Unified Audit Log and enables logging of MailboxAccess events (e.g., MailboxFolderAccess, SendAs) and MailboxSearch events (e.g., SearchQueryPerformed) that are not captured by Audit (Standard). It also supports custom retention policies via the UnifiedAuditLogRetentionPolicy cmdlet, allowing administrators to extend retention up to 10 years, but the default maximum for the 1-year requirement is met through a Premium license. In a real-world breach investigation, Audit (Premium) provides the necessary forensic detail to trace exactly which admin accessed which mailbox and what forwarding rules were modified, which is critical for incident response.
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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
Describe the capabilities of Microsoft compliance solutions — This question tests Describe the capabilities of Microsoft compliance solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Audit (Premium) — Audit (Premium) is required because the question specifies detailed forensic logs for mailbox access, administrator mailbox searches, and changes to email forwarding rules—all of which are high-value, user-specific events that are only captured by Audit (Premium). Audit (Standard) logs basic events but lacks the granularity for these specific operations, and it retains logs for only 90 days by default, whereas Audit (Premium) supports up to 1 year of retention. eDiscovery solutions are for searching and exporting content, not for continuous logging of administrative actions.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A security team needs to investigate a potential data breach that may involve unauthorized access to sensitive files in SharePoint Online and OneDrive for Business. They want to search the unified audit log for file access events, including accesses from mobile devices and third-party applications. Additionally, they need to create custom alert policies that trigger when specific high-privilege users download large volumes of files in a short period. Which Microsoft Purview solution should they use?
hard
✓ A.Microsoft Purview Audit (Premium)
B.Microsoft Purview eDiscovery (Premium)
C.Microsoft Purview Data Lifecycle Management
D.Microsoft Purview Communication Compliance
Why A: Microsoft Purview Audit (Premium) is the correct solution because it provides the deep, granular logging required to investigate data breaches, including file access events from mobile devices and third-party applications in SharePoint Online and OneDrive for Business. It also supports the creation of custom alert policies that can trigger on specific activities, such as high-privilege users downloading large volumes of files in a short period, by leveraging the unified audit log's rich schema and advanced detection capabilities.
Last reviewed: Jun 11, 2026
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This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.
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