Question 1

Which of the following is a protocol for exchanging keys?

Options :

A : DH

B :

AES

C : RSA

D : EC

Answer: A

Question 2

Which one of the following terms describes two numbers that have no common factors?

Options :

A : Fermat-s number

B : Convergent

C : Coprime

D : Euler-s totient

Answer: C

Question 3

How can rainbow tables be defeated?

Options :

A : Use of non-dictionary words

B : Lockout accounts under brute force password cracking attempts

C : All uppercase character passwords

D : Password salting

Answer: D

Question 4

Which one of the following uses three different keys, all of the same size?

Options :

A : DES

B : 3DES

C : AES

D : RSA

Answer: B

Question 5

What must occur in order for a cipher to be considered ‘broken’?

Options :

A : Decoding the key

B : Rendering the cipher no longer useable

C : Rendering the cipher no longer useable

D : Uncovering the algorithm used

Answer: C