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CCSP Practice Question: A company uses a cloud-based file sharing service…
A company uses a cloud-based file sharing service and wants to prevent sensitive data from being shared externally. Which cloud data security capability is most appropriate?
⚠ Common exam trap
ISC2 often tests the distinction between preventive controls (DLP at rest) and detective/monitoring controls (network traffic analysis), leading candidates to choose network monitoring because it sounds like 'data exfiltration prevention' but fails to address the sharing action itself.
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
✓
Scanning data at rest in cloud storage with DLP
Data Loss Prevention (DLP) scanning of data at rest in cloud storage directly identifies and blocks sensitive content (e.g., PII, PCI-DSS data) stored in files before it can be shared externally. This capability is purpose-built for preventing unauthorized sharing by inspecting the actual content of files in the cloud repository, such as Amazon S3 or Azure Blob Storage, using pattern matching and fingerprinting.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Inspecting data in use within applications
Why it's wrong here
This is relevant for application-level DLP, not file storage.
- ✗
Monitoring network traffic for data exfiltration
Why it's wrong here
This detects data in transit, not preventing sharing of stored files.
- ✓
Scanning data at rest in cloud storage with DLP
Why this is correct
DLP scanning identifies sensitive data and can enforce policies to block external sharing.
- ✗
Encrypting data in transit
Why it's wrong here
Encryption protects confidentiality during transmission, not sharing controls.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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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.