- A
Anti-phishing policies
Why wrong: Anti-phishing policies protect against impersonation attacks but do not perform per-click URL scanning.
- B
Safe Attachments
Why wrong: Safe Attachments scans email attachments in a sandbox, not URLs.
- C
Safe Links
Safe Links rewrites URLs and checks them on click, providing protection against malicious links.
- D
Anti-spam policies
Why wrong: Anti-spam policies filter junk mail but do not protect against malicious links within legitimate emails.
Question 954 of 1,411
SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security 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 company uses Microsoft 365. The security team wants to protect users from clicking malicious URLs in email messages. The solution should rewrite all links in incoming emails so that when a user clicks them, the URL is checked in real time against a dynamic list of known malicious sites. Which Microsoft Defender for Office 365 feature should they enable?
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
✓
Safe Links
Safe Links is the correct feature because it is specifically designed to protect users from malicious URLs in email messages and Office documents. It rewrites all links in incoming emails so that when a user clicks them, the URL is checked in real time against a dynamic list of known malicious sites, providing time-of-click protection.
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.
- ✗
Anti-phishing policies
Why it's wrong here
Anti-phishing policies protect against impersonation attacks but do not perform per-click URL scanning.
When this WOULD be correct
An exam question asks: 'Which Microsoft Defender for Office 365 feature should be configured to block users from entering credentials on a fake login page that mimics a trusted site?' In that scenario, anti-phishing policies with impersonation protection would be correct.
- ✗
Safe Attachments
Why it's wrong here
Safe Attachments scans email attachments in a sandbox, not URLs.
When this WOULD be correct
Safe Attachments would be correct if the question asked for a feature that scans email attachments for malware by opening them in a virtual environment before delivery, or if the requirement was to block malicious files in email and SharePoint.
- ✓
Safe Links
Why this is correct
Safe Links rewrites URLs and checks them on click, providing protection against malicious links.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Anti-spam policies
Why it's wrong here
Anti-spam policies filter junk mail but do not protect against malicious links within legitimate emails.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The SC-900 exam frequently reuses these exact scenarios with slightly different constraints.
✓Safe LinksCorrect answer▾
Why this is correct
Safe Links rewrites URLs and checks them on click, providing protection against malicious links.
✗Anti-phishing policiesWrong answer — click to see why▾
Why this is wrong here
Anti-phishing policies protect against phishing attempts by analyzing email content and sender reputation, but they do not rewrite URLs or perform real-time link checking against a dynamic list of malicious sites.
★ When this WOULD be the correct answer
An exam question asks: 'Which Microsoft Defender for Office 365 feature should be configured to block users from entering credentials on a fake login page that mimics a trusted site?' In that scenario, anti-phishing policies with impersonation protection would be correct.
Why candidates choose this
Candidates may confuse anti-phishing policies with Safe Links because both deal with malicious URLs, but anti-phishing focuses on the email content and sender, not on rewriting and real-time URL scanning.
✗Safe AttachmentsWrong answer — click to see why▾
Why this is wrong here
Safe Attachments protects against malicious attachments by detonating them in a sandbox, not by rewriting and checking URLs in real time. The question specifically requires URL rewriting and real-time link checking, which is the function of Safe Links.
★ When this WOULD be the correct answer
Safe Attachments would be correct if the question asked for a feature that scans email attachments for malware by opening them in a virtual environment before delivery, or if the requirement was to block malicious files in email and SharePoint.
Why candidates choose this
Candidates may confuse Safe Attachments with Safe Links because both are part of Microsoft Defender for Office 365 and deal with malicious content, but they target different threat vectors: attachments vs. links.
Analysis generated from the official SC-900blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Safe Links with Anti-phishing policies, but Anti-phishing policies handle impersonation and spoofing detection, not URL rewriting and real-time click verification.
Detailed technical explanation
How to think about this question
Safe Links works by wrapping URLs with a Microsoft-owned proxy domain (e.g., https://nam01.safelinks.protection.outlook.com/?url=...), which intercepts the click and performs a real-time reputation lookup against Microsoft's threat intelligence feeds. If the URL is determined to be malicious at the time of click, the user is blocked and shown a warning page, even if the URL was benign when the email was first delivered. This time-of-click protection is critical for combating fast-flux hosting and short-lived phishing URLs.
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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SC-900 question test?
Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Safe Links — Safe Links is the correct feature because it is specifically designed to protect users from malicious URLs in email messages and Office documents. It rewrites all links in incoming emails so that when a user clicks them, the URL is checked in real time against a dynamic list of known malicious sites, providing time-of-click protection.
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.
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Last reviewed: Jun 11, 2026
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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