CAS-004 Security Engineering Practice Question
Which hashing algorithm is recommended for modern applications requiring high security and resistance to quantum computing threats, and offers improved performance over SHA-2?
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
✓
SHA-3
SHA-3 is the latest NIST-standardized hash function, designed to be resistant to quantum attacks and offers a different structure from SHA-2, with good performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SHA-3
Why this is correct
SHA-3 is the newest NIST hash, with a sponge construction and quantum resistance.
- ✗
RIPEMD-160
Why it's wrong here
RIPEMD-160 is less common and not as widely vetted as SHA-3.
- ✗
MD5
Why it's wrong here
MD5 is broken and insecure.
- ✗
SHA-256
Why it's wrong here
SHA-256 is strong but not designed for quantum resistance; also not newer than SHA-3.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 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 CAS-005 exam.