200-201 Security Concepts Practice Question
An organization wants to ensure that a message has not been altered during transmission. Which cryptographic technique should be used?
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
✓
Hashing
Hashing creates a fixed-size digest; any change in data changes the hash, verifying integrity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Asymmetric encryption
Why it's wrong here
Asymmetric encryption provides confidentiality and authentication, but not integrity alone.
- ✗
Digital signature
Why it's wrong here
Digital signatures provide authentication and non-repudiation, but hashing is the integrity check.
- ✓
Hashing
Why this is correct
Hashing produces a unique hash; comparing hashes detects alterations.
- ✗
Symmetric encryption
Why it's wrong here
Encryption provides confidentiality, not integrity verification.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-201 practice question is part of Courseiva's free Cisco 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 200-201 exam.