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Q.

________ DES was designed to increase the size of the DES key

A

Double

B

Triple

C

Quadruple

D

none of the above

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1.

The _______ criterion states that it must be extremely difficult or impossible to create the message if the message digest is given.

A

one-wayness

B

weak-collision-resistance

C

strong-collision-resistance

D

none of the above

Discussion

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2.

DES is a(n) ________ method adopted by the U.S. government.

A

symmetric-key

B

asymmetric-key

C

either (a) or (b)

D

neither (a) nor (b)

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A _______network is used inside an organization.

A

private

B

public

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D

semi-public

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Typically, ______ can receive application data from any application layer protocol, but the protocol is normally HTTP

A

SSL

B

TLS

C

either (a) or (b)

D

both (a) and (b)

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5.

IPSec in the ______ mode does not protect the IP header.

A

transport

B

tunnel

C

either (a) or (b)

D

neither (a) nor (b)

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