The correct answer is Data Loss Prevention (DLP) policies and auto-labeling policies to apply sensitivity labels to credit card data. DLP policies are the enforcement mechanism that detects sensitive information like credit card numbers in emails and documents, then automatically blocks or warns users to prevent data exfiltration. Auto-labeling policies complement this by scanning content at rest or in transit and applying a sensitivity label—such as “Highly Confidential”—directly to the file or message, ensuring persistent protection even after the data moves. On the Microsoft Cybersecurity Architect exam, this scenario tests your ability to combine detection and protection controls within Microsoft Purview; a common trap is confusing retention labels (which manage lifecycle, not security) with sensitivity labels, or overcomplicating the solution with trainable classifiers when DLP and auto-labeling are the direct, built-in tools. Memory tip: think “DLP detects and blocks, auto-labeling locks and tracks”—two features, one goal.
SC-100 Practice Question: Design security operations, identity, and compliance capabilities
This SC-100 practice question tests your understanding of design security operations, identity, and compliance capabilities. 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.
You need to design a compliance solution using Microsoft Purview that automatically detects and protects credit card numbers in emails and documents. Which TWO features should you include? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Data Loss Prevention (DLP) policies to detect and block credit card numbers.
Option A is correct because DLP policies can detect sensitive data and enforce actions. Option B is correct because auto-labeling can apply sensitivity labels. Option C is wrong because retention labels are for retention, not protection. Option D is wrong because trainable classifiers are for pattern detection, but DLP and auto-labeling are more direct. Option E is wrong because eDiscovery is for search and legal hold.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Data Loss Prevention (DLP) policies to detect and block credit card numbers.
Why this is correct
DLP can detect sensitive data and enforce protective actions.
Related concept
Static NAT maps one inside address to one outside address.
✗
Retention labels to retain credit card data for a specified period.
Why it's wrong here
Retention labels manage retention, not detection or protection.
✓
Auto-labeling policies to apply sensitivity labels to credit card data.
Why this is correct
Auto-labeling can automatically classify and protect data.
Related concept
Static NAT maps one inside address to one outside address.
✗
Trainable classifiers to identify credit card numbers.
Why it's wrong here
Trainable classifiers identify content but don't enforce protection.
✗
eDiscovery to search for credit card numbers.
Why it's wrong here
eDiscovery is for legal discovery, not real-time protection.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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-100 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-100 NAT questions on configuration and troubleshooting.
Design security operations, identity, and compliance capabilities — This question tests Design security operations, identity, and compliance capabilities — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Data Loss Prevention (DLP) policies to detect and block credit card numbers. — Option A is correct because DLP policies can detect sensitive data and enforce actions. Option B is correct because auto-labeling can apply sensitivity labels. Option C is wrong because retention labels are for retention, not protection. Option D is wrong because trainable classifiers are for pattern detection, but DLP and auto-labeling are more direct. Option E is wrong because eDiscovery is for search and legal hold.
What should I do if I get this SC-100 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-100 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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