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CCSP Practice Question: A company uses a Cloud Access Security Broker…
A company uses a Cloud Access Security Broker (CASB) to enforce security policies on SaaS applications. They want to ensure that data uploaded to a file-sharing service does not contain Social Security numbers (SSNs). Which CASB capability is most effective?
⚠ Common exam trap
Test-takers frequently confuse API-based data discovery (which is excellent for identifying sensitive data at rest) with inline DLP scanning (which is required for real-time prevention), leading them to choose Option C even though it cannot block the upload in progress.
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
✓
Inline DLP scanning
Inline DLP scanning is the most effective CASB capability for preventing data containing Social Security numbers from being uploaded to a file-sharing service because it inspects the content of files in real time as they are being uploaded. The CASB acts as a proxy, intercepting the HTTP/HTTPS traffic, parsing the file payload, and applying pattern-matching algorithms (e.g., regex for SSN format) to block the upload before it reaches the SaaS application. This proactive, real-time enforcement is essential for data loss prevention (DLP) at the point of upload.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Contextual access control
Why it's wrong here
Access control does not examine file content.
- ✓
Inline DLP scanning
Why this is correct
Inline scanning blocks sensitive data in real time.
- ✗
API-based data discovery
Why it's wrong here
Discovery finds data after it is stored, not prevent upload.
- ✗
Encryption of data in transit
Why it's wrong here
Encryption does not inspect content.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.