Match List - I with List - II.

1. A(a)-(III), (b)-(I), (c)-(IV), (d)-(II)
2. B(a)-(III), (b)-(IV), (c)-(II), (d)-(I)
3. C(a)-(I), (b)-(III), (c)-(IV), (d)-(II)
4. D(a)-(II), (b)-(I), (c)-(IV), (d)-(III)

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: A. (a)-(III), (b)-(I), (c)-(IV), (d)-(II)

Explanation

A monoalphabetic cipher maps each letter one-to-one; DES uses round keys; stream ciphers use feedback to generate the key stream; polyalphabetic ciphers map one letter to many.