The answer is to create a DLP policy with a condition that matches the Credit Card Number sensitive info type and an action to block the email. This configuration works because Microsoft Purview DLP uses predefined sensitive info types—like regex patterns for credit card numbers—to automatically detect the data in transit, and the block action prevents the email from being sent, either by rejecting it at the transport layer or by sending a notification to the user. On the SC-900 exam, this tests your understanding of how DLP policies apply to data in motion, specifically email; a common trap is confusing DLP with security tools like Microsoft Defender for Office 365 (which handles threats, not data classification) or encryption features like Customer Key or Double Key Encryption (which protect data at rest, not block sharing). Remember the memory tip: “DLP detects and blocks; encryption protects but doesn’t stop the send.”
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. 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 is implementing Microsoft Purview Data Loss Prevention (DLP). You need to prevent users from sharing sensitive credit card numbers via email. The DLP policy must trigger automatically when a user attempts to send an email containing a credit card number. Which DLP configuration should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a DLP policy with a condition that matches the Credit Card Number sensitive info type and an action to block the email
Option C is correct because a DLP policy with a rule that uses a sensitive info type (Credit Card Number) and an action to block the email is the standard approach. Option A is wrong because Microsoft Defender for Office 365 is for anti-phishing and malware, not DLP. Option B is wrong because Customer Key is for encryption, not DLP. Option D is wrong because Double Key Encryption is for protecting data with two keys, not for blocking sharing.
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.
✓
Create a DLP policy with a condition that matches the Credit Card Number sensitive info type and an action to block the email
Why this is correct
This is the correct DLP configuration to block emails with credit card numbers.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure Double Key Encryption for the Exchange Online mailbox
Why it's wrong here
Double Key Encryption is for data protection, not blocking sharing.
✗
Configure a Safe Links policy in Microsoft Defender for Office 365
Why it's wrong here
Safe Links protects against malicious URLs, not DLP.
✗
Use Microsoft Purview Customer Key for encryption
Why it's wrong here
Customer Key is for encryption, not DLP.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 SC-900 question in full detail.
Identify which SC-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Create a DLP policy with a condition that matches the Credit Card Number sensitive info type and an action to block the email — Option C is correct because a DLP policy with a rule that uses a sensitive info type (Credit Card Number) and an action to block the email is the standard approach. Option A is wrong because Microsoft Defender for Office 365 is for anti-phishing and malware, not DLP. Option B is wrong because Customer Key is for encryption, not DLP. Option D is wrong because Double Key Encryption is for protecting data with two keys, not for blocking sharing.
What should I do if I get this SC-900 question wrong?
Identify which SC-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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. Your organization is implementing Microsoft Purview Data Loss Prevention (DLP) to protect credit card numbers. You need to ensure that when a user attempts to share a document containing a credit card number via email, the email is blocked and the user receives a policy tip. Which action should you configure in the DLP policy?
medium
A.Notify user
B.Audit only
✓ C.Block with user notification
D.Block override
Why C: In Microsoft Purview DLP, the 'Block' action with user notification sends a policy tip and blocks the email. 'Block override' allows override with justification. 'Audit only' logs without blocking. 'Notify user' sends an email but does not block. Option B is correct because it blocks the email and shows a policy tip.
Variation 2. An organization uses Microsoft Purview Data Loss Prevention (DLP) to prevent sensitive data from being shared externally. They need to block sharing of credit card numbers in emails and Teams messages. What should they create?
medium
A.A retention label to retain credit card data
✓ B.A DLP policy with a rule that detects credit card numbers and blocks sharing
C.An audit policy to log credit card sharing
D.A sensitivity label that marks credit card data
Why B: Option A is correct because DLP policies can detect and block sensitive data like credit card numbers in email and Teams. Option B is wrong because sensitivity labels apply metadata but don't block sharing. Option C is wrong because retention labels manage retention. Option D is wrong because audit policies log activity but don't block.
Variation 3. An organization uses Microsoft Purview Data Loss Prevention (DLP) to protect sensitive data. They need to prevent users from sharing credit card numbers via email outside the company. Which type of DLP rule action should they configure?
easy
✓ A.Block
B.Notify
C.Audit only
D.Encrypt
Why A: The 'Block' action prevents the email from being sent and can optionally notify the user and admin. Option A is wrong because 'Audit only' logs the event but does not block. Option C is wrong because 'Encrypt' is a separate action but not the primary block mechanism. Option D is wrong because 'Notify' only sends an alert without blocking.
Variation 4. An organization uses Microsoft Purview Data Loss Prevention (DLP) to protect sensitive data. They need to ensure that when a user tries to share a document containing a credit card number externally via email, the user sees a policy tip and the email is blocked. Which DLP rule action should they configure?
medium
A.Notify user with policy tip only
✓ B.Block the message and notify the user with a policy tip
C.Block the message only
D.Redirect the message to the compliance admin
Why B: DLP rules can have actions like 'Block' and 'Notify user with policy tip'. Option A is wrong because it doesn't block; Option B is wrong because it doesn't notify; Option D is wrong because it doesn't block.
Variation 5. Your organization uses Microsoft Purview Data Loss Prevention (DLP) to protect sensitive data. You need to prevent users from sharing credit card numbers in emails to external recipients. Which DLP rule action should you configure?
medium
A.Audit the activity only
B.Allow the message but notify the user
✓ C.Block the message from being sent
D.Allow the message with a policy tip
Why C: Option A is correct because blocking the message from being sent is the appropriate action to prevent data loss. Option B is wrong because allowing override with justification does not prevent sharing. Option C is wrong because notifying the user without blocking still allows the email to be sent. Option D is wrong because auditing alone does not block the action.
Last reviewed: Jun 21, 2026
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