SC-900 Practice Question: Describe the capabilities of Microsoft compliance solutions
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?
⚠ Common exam trap
A common mix-up: candidates confuse the confidence level (which is a calculated percentage) with the required matching criteria (regex plus keywords), leading them to select Option B, which incorrectly implies that high confidence alone is sufficient without the keyword requirement.
Answer choices
Why each option matters
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
A custom sensitive information type in Microsoft Purview uses a primary element (the SSN regex pattern) and requires at least one supporting element (a keyword) to trigger a match. This ensures that the document is not falsely classified by the regex alone, which could match random number sequences. The compliance administrator configured the type with a minimum count of one keyword as a proximity requirement, so the document must contain both the regex pattern and at least one keyword.
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
This statement is incorrect because the rule configuration for the custom sensitive information type (SIT) explicitly uses a logical AND operator to combine its conditions. For a match to occur, the document must contain *both* a pattern matching the SSN regular expression *and* at least one keyword. A logical OR condition, where only one of the criteria needs to be present, is not specified in this rule, making the 'either...or' interpretation invalid.
- ✗
The document must contain the SSN regex with high confidence level
Why it's wrong here
This option is incorrect because the confidence level is an attribute assigned to a specific pattern match, indicating the likelihood of it being a true positive, rather than a mandatory requirement for the overall rule to trigger. While sensitive information types often utilize confidence levels (high, medium, low) to refine detection, the rule as described does not specify that the SSN regex *must* be detected with a high confidence level for the rule to be satisfied. The rule simply requires the presence of the pattern itself.
- ✗
The document must contain a pattern matching the SSN regex and at least two keywords
Why it's wrong here
This statement is inaccurate because the rule explicitly defines `minMatches=1` for the keyword component of the custom sensitive information type (SIT). This configuration dictates that a minimum of one keyword must be present in the document to satisfy that specific condition of the rule. Requiring 'at least two keywords' would necessitate a `minMatches=2` setting or higher, which is not the case here.
- ✓
The document must contain a pattern matching the SSN regex and at least one keyword
Why this is correct
This option accurately describes the conditions for a match. The custom sensitive information type (SIT) rule is configured with a logical AND operator, requiring both the detection of a pattern matching the Social Security Number (SSN) regular expression and the presence of associated keywords. Specifically, the `minMatches=1` setting for the keyword component means that at least one keyword must be found in proximity to the SSN pattern to trigger a successful detection.
Go deeper
Related to this question
Learn chapter
Core Security Concepts
Key term
Compliance
Compliance is the process of ensuring that an organization follows laws, regulations, standards, and internal policies that apply to its operations and data handling.
Key term
General Data Protection Regulation
A European Union law that gives individuals control over their personal data and sets strict rules for how organizations collect, store, and process that data.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SC-900 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-900 exam.