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MCQ

Q.

_______ means to prove the identity of the entity that tries to access the system's resources.

A

Message authentication

B

Entity authentication

C

Message confidentiality

D

none of the above

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MCQ

1.

A(n) ______ is a keyless substitution cipher with N inputs and M outputs that uses a formula to define the relationship between the input stream and the output stream

A

S-box

B

P-box

C

T-box

D

none of the above

Discussion

MCQ

2.

. Challenge-response authentication can be done using ________

A

symmetric-key ciphers

B

asymmetric-key ciphers

C

keyed-hash functions

D

all of the above

Discussion

MCQ

3.

. To authenticate the data origin, one needs a(n) _______.

A

MDC

B

MAC

C

either (a) or (b)

D

neither (a) nor (b)

Discussion

MCQ

4.

In a(n) ________ cipher, the same key is used by both the sender and receiver.

A

symmetric-key

B

asymmetric-key

C

either (a) or (b)

D

neither (a) nor (b)

Discussion

MCQ

5.

______ was invented by Phil Zimmerman

A

IPSec

B

SSL

C

PGP

D

none of the above

Discussion

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