Question 1

Which of the following asymmetric algorithms is described by U.S. Patent 5,231,668 and FIPS 186

Options :

A : RSA

B : RC4

C : DSA

D : AES

Answer: C

Question 2

What is the largest key size that AES can use?

Options :

A : 128

B : 256

C : 512

D : 56

Answer: B

Question 3

In a Feistel cipher, the two halves of the block are swapped in each round. What does this provide?

Options :

A : Avalanche

B : Confusion

C : Substitution

D : Diffusion

Answer: B

Question 4

Which one of the following is an example of a symmetric key algorithm?

Options :

A : RSA

B : Rijndael

C : Diffie-Hellman

D : ECC

Answer: B

Question 5

Symmetric algorithm. Designed by James Massey and Xuejia Lai. Operates on 64 bit blocks and has a 128 bit key. Consists of 8 identical transformations each round and an output transformation.

Options :

A : IDEA

B : RSA

C : CAST

D : DES

Answer: A

Free ECES Mock Exam – Practice Online Confidently

Buying Options: