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. 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.
A compliance officer needs to ensure that all emails and documents in Exchange Online and SharePoint are automatically retained for five years. After five years, the data should be automatically deleted. Which Microsoft Purview solution should they configure?
Correct. Retention policies are the appropriate solution to automatically retain and then delete content based on a defined schedule.
B
Data loss prevention (DLP) policies
Why wrong: Incorrect. DLP policies are used to prevent sensitive information from being shared inappropriately, not to enforce retention and deletion schedules.
C
Sensitivity labels
Why wrong: Incorrect. Sensitivity labels are used to classify and protect content based on sensitivity, but they do not inherently enforce retention or deletion timelines.
D
eDiscovery (Standard)
Why wrong: Incorrect. eDiscovery is used for searching, preserving, and exporting content for legal and regulatory investigations, not for automated retention and deletion.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Retention policies
Retention policies in Microsoft Purview are designed to automatically retain data for a specified period and then delete it, meeting the compliance officer's requirement for Exchange Online and SharePoint. This solution applies at the container level (e.g., mailboxes, sites) and can enforce a five-year retention followed by automatic deletion without user intervention.
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.
✓
Retention policies
Why this is correct
Correct. Retention policies are the appropriate solution to automatically retain and then delete content based on a defined schedule.
Related concept
Read the scenario before looking for a memorised answer.
✗
Data loss prevention (DLP) policies
Why it's wrong here
Incorrect. DLP policies are used to prevent sensitive information from being shared inappropriately, not to enforce retention and deletion schedules.
✗
Sensitivity labels
Why it's wrong here
Incorrect. Sensitivity labels are used to classify and protect content based on sensitivity, but they do not inherently enforce retention or deletion timelines.
✗
eDiscovery (Standard)
Why it's wrong here
Incorrect. eDiscovery is used for searching, preserving, and exporting content for legal and regulatory investigations, not for automated retention and deletion.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse retention policies with DLP policies, mistakenly thinking DLP can enforce time-based retention and deletion, when DLP is solely focused on preventing data loss through content inspection and action rules.
Detailed technical explanation
How to think about this question
Retention policies in Microsoft Purview use a preservation lock feature to prevent tampering with retention settings, ensuring compliance with regulatory requirements. Under the hood, Exchange Online and SharePoint apply timestamps (e.g., item creation date or last modified date) to calculate the retention period, and the Managed Folder Assistant in Exchange or the SharePoint Timer Job handles the actual deletion after the five-year window expires. A subtle behavior is that retention policies can be set to retain items based on when they were created or last modified, which affects whether emails or documents are deleted exactly five years from creation or from the last edit.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-900 question in full detail.
Describe security, compliance, privacy, and trust in Microsoft 365 — This question tests Describe security, compliance, privacy, and trust in Microsoft 365 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Retention policies — Retention policies in Microsoft Purview are designed to automatically retain data for a specified period and then delete it, meeting the compliance officer's requirement for Exchange Online and SharePoint. This solution applies at the container level (e.g., mailboxes, sites) and can enforce a five-year retention followed by automatic deletion without user intervention.
What should I do if I get this MS-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.
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Question Discussion
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