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CV0-004 Practice Question: A cloud administrator is designing a hybrid cloud…
A cloud administrator is designing a hybrid cloud environment that connects on-premises resources to a public cloud. To ensure data protection, the administrator needs to implement controls for data in transit and data at rest. Which TWO security controls should the administrator implement? (Choose 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
✓
TLS 1.2
TLS 1.2 (option A) protects data in transit (e.g., HTTPS connections), and AES-256 (option B) protects data at rest (e.g., encrypted storage volumes). Together, they provide comprehensive encryption for data traveling between on-premises and cloud, and for data stored in the cloud.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
TLS 1.2
Why this is correct
TLS 1.2 encrypts data in transit, ensuring confidentiality over networks (e.g., HTTPS).
- ✓
AES-256
Why this is correct
AES-256 is a strong encryption algorithm commonly used for data at rest, such as disk or file encryption.
- ✗
MFA
Why it's wrong here
MFA adds a layer of authentication but does not protect data confidentiality.
- ✗
IPsec
Why it's wrong here
IPsec secures network traffic but is primarily used for VPN tunnels; it does not cover data at rest.
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RBAC
Why it's wrong here
RBAC controls access permissions but does not encrypt data.
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.