Question 1 3 pts

(TCO 1) Verifying that users are who they say they are and that each input arriving at the system came from a trusted source is _____ .

authenticity

credibility

accountability

integrity

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Question 2 3 pts

(TCO 1) A _____ level breach of security could cause a significant degradation in mission capability to an extent and duration that the organization is able to perform its primary functions but the effectiveness of the functions is significantly reduced.

catastrophic

moderate

low

high

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Question 3 3 pts

(TCO 1) A(n) _____ service is one that protects a system to ensure its availability and addresses the security concerns raised by denial-of-service attacks.

replay

availability

masquerade

integrity

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Question 4 3 pts

(TCO 3) The _____ algorithm will work against any block encryption cipher and does not depend on any particular property of DES.

cipher block chaining

meet-in-the-middle attack

counter mode attack

ciphertext stealing

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Question 5 3 pts

(TCO 1) A _____ attack involves trying every possible key until an intelligible translation of the ciphertext is obtained.

brute-force

Caesar attack

ciphertext only

chosen plaintext

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Question 6 3 pts

(TCO 3) The _____ and _____ block cipher modes of operation are used for authentication.

OFB, CTR

ECB, CBC

CFB, OFB

CBC, CFB

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Question 7 3 pts

(TCO 1) The methods of _____ conceal the existence of the message in a graphic image.

steganography

decryptology

cryptology

cryptography

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Question 8 3 pts

(TCO 4) A _____ cipher is one in which a block of plaintext is treated as a whole and used to produce a ciphertext block of equal length.

bit

product

stream

block

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Question 9 3 pts

(TCO 4) The criteria used in the design of the _____ focused on the design of the S-boxes and on the P function that takes the output of the S-boxes.

Avalanche Attack

Data Encryption Standard

Product Cipher

Substitution Key

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Question 10 3 pts

(TCO 4) Allowing for the maximum number of possible encryption mappings from the plaintext block is referred to by Feistel as the _____.

ideal substitution cipher

round function

ideal block cipher

diffusion cipher