Quick Answer
The answer is Block with override. This action is correct because it allows the DLP policy to automatically block emails containing credit card numbers while still giving users the ability to override the block by providing a business justification, which gets logged for compliance review. On the Microsoft Cybersecurity Architect exam, this scenario tests your understanding of balancing security controls with user productivity—a common trap is choosing "Block" alone, which prevents all sharing and can disrupt legitimate business workflows, or "Notify" which only warns users without enforcement. A strong memory tip is to think of "Block with override" as a "soft block" that acts like a gate with an intercom: the email is stopped, but the user can state their reason to pass through, ensuring the organization retains audit trails while avoiding unnecessary friction.
This SC-100 practice question tests your understanding of design security operations, identity, and compliance capabilities. 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 company uses Microsoft Purview to enforce Data Loss Prevention (DLP) policies. They want to prevent users from sharing credit card numbers via email. Which action should they configure in the DLP policy?
Audit only.
Why wrong: Does not block.
Block with override.
Prevents sharing but allows override with justification.
Notify only.
Why wrong: Only sends notification, does not block.
Block.
Why wrong: Too restrictive; no override option.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Block with override.
Option B is correct because configuring 'Block with override' allows the DLP policy to block the email containing credit card numbers while permitting users to override the block with a business justification. This balances security with operational flexibility, ensuring sensitive data is not shared without authorization while avoiding unnecessary disruption.
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.
Audit only.
Why it's wrong here
Does not block.
Block with override.
Why this is correct
Prevents sharing but allows override with justification.
Related concept
Read the scenario before looking for a memorised answer.
Notify only.
Why it's wrong here
Only sends notification, does not block.
Block.
Why it's wrong here
Too restrictive; no override option.
Common exam traps
The trap here is that candidates often confuse 'Block' with 'Block with override', assuming that simply blocking is sufficient, but Microsoft Purview DLP policies are designed to support user overrides with justification to avoid business disruption, making 'Block with override' the recommended action for scenarios requiring both security and flexibility.
Detailed technical explanation
In Microsoft Purview DLP policies, the 'Block with override' action leverages user-defined overrides via policy tips in Outlook, where users can provide a business justification that is logged for audit. This action uses Exchange Online mail flow rules under the hood to intercept messages containing sensitive data types like credit card numbers, applying transport rules that trigger the block and override workflow. In real-world scenarios, this is critical for compliance with PCI DSS, where accidental sharing must be prevented but legitimate transactions (e.g., payment processing) require an exception mechanism.
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
Design security operations, identity, and compliance capabilities — This question tests Design security operations, identity, and compliance capabilities — Read the scenario before looking for a memorised answer..
The correct answer is: Block with override. — Option B is correct because configuring 'Block with override' allows the DLP policy to block the email containing credit card numbers while permitting users to override the block with a business justification. This balances security with operational flexibility, ensuring sensitive data is not shared without authorization while avoiding unnecessary disruption.
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 SC-100 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-100 exam.
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