The answer is that the document must contain a pattern matching the SSN regex and at least one keyword. This is correct because a custom sensitive information type in Microsoft Purview requires both an IdMatch, which is the primary regex pattern for the sensitive data, and a minimum of one supporting keyword, defined by the Any minMatches=1 element, to trigger classification. On the SC-900 exam, this concept tests your understanding of how confidence levels and proximity rules work, but the core requirement is that both the regex and at least one keyword must be present—a common trap is assuming that a high confidence level alone suffices or that multiple keywords are needed. To remember this, think of it as a lock and key: the regex is the lock shape, but you still need at least one keyword key to turn it.
SC-900 Practice Question: Describe the capabilities of Microsoft compliance solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft compliance 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.
Network Topology
A compliance administrator creates the above custom sensitive information type for detecting social security numbers (SSNs). What is required for a document to be classified as containing an SSN?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The document must contain a pattern matching the SSN regex and at least one keyword
Option A is correct because the pattern requires both a regex match (IdMatch) and at least one keyword (Any minMatches=1). Option B is wrong because it only needs one keyword. Option C is wrong because confidence level is just metadata. Option D is wrong because it requires both regex and keyword.
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.
✗
The document must contain either the SSN regex or a keyword
Why it's wrong here
The pattern requires both (IdMatch and Any).
✗
The document must contain the SSN regex with high confidence level
Why it's wrong here
Confidence level is a property of the pattern, not a requirement.
✗
The document must contain a pattern matching the SSN regex and at least two keywords
Why it's wrong here
minMatches=1 means at least one keyword is sufficient.
✓
The document must contain a pattern matching the SSN regex and at least one keyword
Why this is correct
The rule has IdMatch for regex and Any with minMatches=1 for keyword.
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.
Trap categories for this question
Keyword trap
minMatches=1 means at least one keyword is sufficient.
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 capabilities of Microsoft compliance solutions — This question tests Describe the capabilities of Microsoft compliance solutions — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The document must contain a pattern matching the SSN regex and at least one keyword — Option A is correct because the pattern requires both a regex match (IdMatch) and at least one keyword (Any minMatches=1). Option B is wrong because it only needs one keyword. Option C is wrong because confidence level is just metadata. Option D is wrong because it requires both regex and keyword.
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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