Question 391 of 964
CCSP Cloud Application Security Practice Question
A developer needs to store session state for a cloud-based web application. Which of the following is the most secure approach?
⚠ Common exam trap
ISC2 often tests the misconception that SSL/TLS alone provides sufficient security for session data, but the trap here is that SSL only protects data in transit, not at rest, so candidates who choose 'database with SSL' overlook the need for encryption at rest and server-side control.
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
✓
Store session data in an encrypted server-side storage
Storing session state in encrypted server-side storage ensures that session data is never exposed to the client, mitigating risks of tampering, replay, or information disclosure. Encryption at rest (e.g., using AES-256) protects against unauthorized access to the storage layer, while server-side control prevents client-side manipulation of session tokens or data. This approach aligns with the principle of least privilege and is recommended by OWASP for secure session management in cloud applications.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Store session data in an encrypted server-side storage
Why this is correct
Server-side storage with encryption protects session data from unauthorized access.
- ✗
Store session data in a database with SSL
Why it's wrong here
SSL protects data in transit but not at rest; encryption is needed.
- ✗
Store session data in client-side cookies
Why it's wrong here
Client-side cookies can be tampered with or stolen, exposing session data.
- ✗
Store session data in a distributed cache
Why it's wrong here
Distributed caches often lack encryption, making data vulnerable.
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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Last reviewed: Jun 30, 2026
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.
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