easyMultiple SelectObjective-mapped
CCSP Practice Question: Which TWO data lifecycle stages are most critical…
Which TWO data lifecycle stages are most critical for applying encryption controls in a cloud object storage service? (Choose two.)
⚠ Common exam trap
ISC2 often tests the distinction between data lifecycle stages by making candidates confuse 'data in use' with 'data at rest' or 'data in transit,' but cloud object storage does not process data in memory, so encryption for data in use is irrelevant here.
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
✓
Data in transit
Encryption for data in transit (e.g., TLS 1.3) protects data as it moves between the client and the cloud object storage service, preventing interception or man-in-the-middle attacks. Data at rest encryption (e.g., server-side encryption with AES-256) protects stored objects from unauthorized access, whether from compromised infrastructure or misconfigured access controls. These two stages cover the primary threat vectors for cloud object storage: network interception and storage compromise.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Data in transit
Why this is correct
Encryption protects data during API calls.
- ✗
Data in use
Why it's wrong here
Object storage does not process data.
- ✗
Data deletion
Why it's wrong here
Deletion is an event, but encryption doesn't apply directly.
- ✓
Data at rest
Why this is correct
Encryption protects stored data.
- ✗
Data creation
Why it's wrong here
Creation is an event, not a stage.
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 |
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.