Quick Answer
The correct answer is to configure a Safe Attachments policy. This is the right choice because Microsoft Defender for Office 365’s Safe Attachments feature is specifically designed to protect against malicious attachments in email by detonating each attachment in a virtual sandbox environment before delivery, analyzing its behavior to block or replace threats. For the MS-102 exam, this question tests your ability to distinguish between Defender policies: Safe Attachments handles file-based threats, while Safe Links manages URL protection. A common trap is confusing Safe Attachments with anti-malware policies, but remember that Safe Attachments provides dynamic, sandbox-based analysis rather than static signature detection. To configure Safe Attachments policy effectively, you set actions like Block, Replace, or Dynamic Delivery based on the threat verdict. Memory tip: think “Sandbox for Attachments” to recall that Safe Attachments detonates files before they reach the inbox.
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. 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.
Your organization has a Microsoft 365 E5 subscription. You want to enable Microsoft Defender for Office 365 to protect against malicious attachments in email. Which policy should you configure?
Anti-phishing policy
Why wrong: Anti-phishing policy protects against phishing attacks, not malicious attachments.
Anti-malware policy
Why wrong: Anti-malware policy provides baseline protection but not the advanced scanning of Defender for Office 365.
Safe Attachments policy
Safe Attachments scans email attachments for malicious content.
Safe Links policy
Why wrong: Safe Links protects against malicious URLs in email, not attachments.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Safe Attachments policy
Safe Attachments policy is the correct choice because Microsoft Defender for Office 365's Safe Attachments feature specifically protects against malicious attachments in email by detonating them in a virtual sandbox environment before delivery. This policy allows you to configure actions for detected malware, such as blocking, replacing, or dynamically delivering attachments based on threat analysis.
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.
Anti-phishing policy
Why it's wrong here
Anti-phishing policy protects against phishing attacks, not malicious attachments.
Anti-malware policy
Why it's wrong here
Anti-malware policy provides baseline protection but not the advanced scanning of Defender for Office 365.
Safe Attachments policy
Why this is correct
Safe Attachments scans email attachments for malicious content.
Related concept
Read the scenario before looking for a memorised answer.
Safe Links policy
Why it's wrong here
Safe Links protects against malicious URLs in email, not attachments.
Common exam traps
The trap here is that candidates often confuse the basic Anti-malware policy (which uses signature-based detection) with the advanced Safe Attachments policy (which uses sandbox detonation), leading them to select Option B incorrectly.
Detailed technical explanation
Safe Attachments uses a hypervisor-based sandbox environment to open and analyze attachments in real time, checking for malicious behavior such as code injection or unauthorized network calls. This process can introduce a slight delivery delay, and administrators can configure policies to either block attachments during analysis or allow them with dynamic delivery, where a placeholder is shown until analysis completes. In high-volume environments, Safe Attachments can be tuned with priority-based policies to ensure critical mailboxes are scanned first.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Read the scenario before looking for a memorised answer..
The correct answer is: Safe Attachments policy — Safe Attachments policy is the correct choice because Microsoft Defender for Office 365's Safe Attachments feature specifically protects against malicious attachments in email by detonating them in a virtual sandbox environment before delivery. This policy allows you to configure actions for detected malware, such as blocking, replacing, or dynamically delivering attachments based on threat analysis.
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 24, 2026
This MS-102 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 MS-102 exam.
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