Question 1

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

Question 2

Juanita has been assigned the task of selecting email encryption for the staff of the insurance company she works for. The various employees often use diverse email clients. Which of the following methods is available as an add-in for most email clients?

Options :

A : PGP

B : Caesar cipher

C : DES

D : RSA

Answer: A

Question 3

The reverse process from encoding - converting the encoded message back into its plaintext format.

Options :

A : Decoding

B : Whitening

C : Encoding

D : Substitution

Answer: A

Question 4

Which one of the following best describes a process that splits the block of plaintext into two separate blocks, then applies the round function to one half, and finally swaps the two halves?

Options :

A : Symmetric cryptography

B : Block ciphers

C : Substitution cipher

D : Feistel cipher

Answer: D

Question 5

Software for maintaining an on-the-fly-encrypted volume. Data is automatically encrypted right before it is saved, then decrypted right after it is loaded, all w/o user intervention.

Options :

A : VPN

B : PGP

C : Cryptool

D : VeraCrypt

Answer: D