Understanding Cisco Cybersecurity Fundamentals (SECFND, legacy) — Question 102

Which of the following are examples of symmetric block cipher algorithms?

Answer options

• A. Advanced Encryption Standard (AES)
• B. Triple Digital Encryption Standard (3DES)
• C. DSA
• D. ElGamal

Correct answer: A, B, D

Explanation

The correct answers, A and B, are both symmetric block cipher algorithms widely used for encryption. Option C, DSA, is a digital signature algorithm and not a cipher, while option D, ElGamal, is an asymmetric encryption algorithm, making them incorrect choices.