easyMultiple SelectObjective-mapped
CV0-004 Practice Question: Which TWO of the following are effective methods…
Which TWO of the following are effective methods to protect data in transit within a cloud environment? Select two.
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
✓
VPN overlay networks
Options D and E are correct because VPN overlay networks and TLS/SSL encryption both protect data in transit by encrypting the communication channel. Option A (object-level ACLs) controls access to data but does not encrypt it in transit. Option B (server-side encryption with AES-256) protects data at rest. Option C (data masking) obscures data but does not protect it during transmission.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Object-level ACLs
Why it's wrong here
ACLs control access to objects, not encryption in transit.
- ✗
Server-side encryption with AES-256
Why it's wrong here
This is for data at rest, not in transit.
- ✗
Data masking
Why it's wrong here
Data masking obscures sensitive data, but does not encrypt in transit.
- ✓
VPN overlay networks
Why this is correct
VPNs encrypt traffic between endpoints or networks.
- ✓
TLS/SSL encryption
Why this is correct
TLS encrypts data between client and server.
Visual reference
Quick reference
Symmetric Encryption Algorithm Comparison
| Algorithm | Key Size | Block Size | Status | Notes |
|---|---|---|---|---|
| AES-128 | 128-bit | 128-bit | Current standard | NIST approved; WPA3, TLS |
| AES-256 | 256-bit | 128-bit | Current standard | Preferred for sensitive / govt data |
| 3DES | 112-bit effective | 64-bit | Deprecated (2023) | Replaced by AES |
| DES | 56-bit | 64-bit | Broken | Cracked in < 24 h; never deploy |
| ChaCha20 | 256-bit | Stream cipher | Current | TLS 1.3, WireGuard |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.