The answer is auto-labeling with sensitivity labels in Microsoft Purview Information Protection. This solution is correct because it uses policy rules to automatically scan documents for sensitive content, such as passport numbers, and applies the appropriate sensitivity label without any user intervention, ensuring consistent classification and protection across the organization. On the SC-900 exam, this scenario tests your understanding of how Purview solutions differ: auto-labeling is the only fully automated labeling method, while trainable classifiers require manual training and DLP policies detect and block data but do not label by default. A common trap is confusing auto-labeling with unified labeling, which is a client-side feature that demands user action. Memory tip: think "auto" for automatic—if the question says "without user intervention," auto-labeling is your answer.
SC-900 Practice Question: Describe the concepts of security, compliance, and identity
This SC-900 practice question tests your understanding of describe the concepts of security, compliance, and identity. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 Microsoft 365 organization needs to classify and protect sensitive documents based on their content, such as passport numbers. They want the classification to be applied automatically without user intervention. Which Microsoft Purview solution should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Auto-labeling with sensitivity labels
Auto-labeling in Microsoft Purview Information Protection uses policy rules to automatically apply sensitivity labels to documents containing sensitive info like passport numbers. Trainable classifiers are used for more complex patterns but require training. Data Loss Prevention (DLP) can detect and protect but does not label documents by default. Unified labeling is a client-side feature requiring user action.
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.
✗
Unified labeling client
Why it's wrong here
The unified labeling client requires user interaction to apply labels.
✗
Data Loss Prevention (DLP) policies
Why it's wrong here
DLP policies detect and protect data but do not automatically apply labels.
✗
Trainable classifiers
Why it's wrong here
Trainable classifiers are used for machine learning-based classification but are not the primary auto-labeling solution.
✓
Auto-labeling with sensitivity labels
Why this is correct
Auto-labeling automatically applies sensitivity labels based on content detection.
Related concept
Static NAT maps one inside address to one outside address.
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-900 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-900 NAT questions on configuration and troubleshooting.
Describe the concepts of security, compliance, and identity — This question tests Describe the concepts of security, compliance, and identity — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Auto-labeling with sensitivity labels — Auto-labeling in Microsoft Purview Information Protection uses policy rules to automatically apply sensitivity labels to documents containing sensitive info like passport numbers. Trainable classifiers are used for more complex patterns but require training. Data Loss Prevention (DLP) can detect and protect but does not label documents by default. Unified labeling is a client-side feature requiring user action.
What should I do if I get this SC-900 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-900 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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