Question 1

There is wide variation in the strengths of SSL/TLS cipher suites.

Accepted Answer

A) True 
 B)False

Question 2

IPsec is considered the gold standard in VPN security.

Accepted Answer

A) True 
 B)False

Question 3

A cryptanalyst is someone who cracks encryption.

Accepted Answer

A) True 
 B)False

Question 4

A(n)  ________ is simply a webserver as far as SSL/TLS is concerned.

Accepted Answer

A)   SSL/TLS key
B)   SSL/TLS gateway
C)   DES/3DES
D)   encryptionE) A) and D)
F) A) and C)

Question 5

________ uses a key exchanged during the initial negotiation phase.

Accepted Answer

A)   A DES
B)   The HMAC
C)   A hash
D)   A message digestE) None of the above
F) A) and B)

Question 6

If a send is the true party, the sender will be authenticated.

Accepted Answer

A) True 
 B)False

Question 7

Cryptographic systems are nearly always used over trusted networks.

Accepted Answer

A) True 
 B)False

Question 8

________ is a cryptographic process that changes plaintext into a seemingly random stream of bits.

Accepted Answer

A)   Encryption
B)   Brute-force key cracking
C)   Cryptography
D)   CiphertextE) All of the above
F) B) and C)

Question 9

IPsec tunnel mode only protects traffic between two IPsec gateways at the same site.

Accepted Answer

A) True 
 B)False

Question 10

Public key encryption and symmetric key encryption are complementary.

Accepted Answer

A) True 
 B)False

Question 11

A ________ is the person a supplicant claims to be.

Accepted Answer

A)   verifier
B)   public key
C)   true party
D)   digital signatureE) A) and B)
F) All of the above

Question 12

Message-by-message authentication thwarts efforts by impostors to insert messages into a dialogue stream.

Accepted Answer

A) True 
 B)False

Question 13

Almost all computer information is encoded as a set of bytes and characters.

Accepted Answer

A) True 
 B)False

Question 14

A cipher suite includes all of the following EXCEPT ________.

Accepted Answer

A)   a specific set of methods and options for initial authentication
B)   a key exchange
C)   ongoing message confidentiality, authentication, and integrity
D)   an encrypted message and an electronic signatureE) None of the above
F) A) and B)

Question 15

When ________ is applied to a binary message, the results is far shorter than the original message.

Accepted Answer

A)   hashing
B)   credentialing
C)   verifying
D)   keyingE) A) and D)
F) A) and C)

Question 16

A cryptographic system is ________.

Accepted Answer

A)   a system where letters are moved around within a message, based on their initial positions in the message
B)   a packaged set of cryptographic countermeasures for protecting dialogues
C)   a specific set of options in SSL/TLS
D)   when both parties authenticate themselvesE) A) and C)
F) B) and D)

Question 17

SSL/TLS is able to create site-to-site VPNs.

Accepted Answer

A) True 
 B)False

Question 18

What does a client need to have to use SSL/TLS?

Accepted Answer

A)   For basic operation, it needs additional software.
B)   For all operations, it needs additional software.
C)   For basic operation, it needs encryption software.
D)   For all activities and all messages, it must have sophisticated software.E) All of the above
F) None of the above

Question 19

Public key encryption to do keying is extremely vast.

Accepted Answer

A) True 
 B)False

Question 20

Nonrepudiation means that a sender cannot deny that he or she sent an important message.

Accepted Answer

A) True 
 B)False

Exam 3: Cryptography

Nonrepudiation means that a sender cannot deny that he or she sent an important message.

Correct AnswerverifiedShow Answer

IPsec is considered the gold standard in VPN security.

Correct AnswerverifiedShow Answer

A cryptanalyst is someone who cracks encryption.

Correct AnswerverifiedShow Answer

Public key encryption and symmetric key encryption are complementary.

Correct AnswerverifiedShow Answer

Almost all computer information is encoded as a set of bytes and characters.

Correct AnswerverifiedShow Answer

When ________ is applied to a binary message, the results is far shorter than the original message.

Correct AnswerverifiedShow Answer

________ uses a key exchanged during the initial negotiation phase.

Correct AnswerverifiedShow Answer

Public key encryption to do keying is extremely vast.

Correct AnswerverifiedShow Answer

If a send is the true party, the sender will be authenticated.

Correct AnswerverifiedShow Answer

Cryptographic systems are nearly always used over trusted networks.

Correct AnswerverifiedShow Answer

________ is a cryptographic process that changes plaintext into a seemingly random stream of bits.

Correct AnswerverifiedShow Answer

What does a client need to have to use SSL/TLS?

Correct AnswerverifiedShow Answer

IPsec tunnel mode only protects traffic between two IPsec gateways at the same site.

Correct AnswerverifiedShow Answer

SSL/TLS is able to create site-to-site VPNs.

Correct AnswerverifiedShow Answer

A cipher suite includes all of the following EXCEPT ________.

Correct AnswerverifiedShow Answer

Message-by-message authentication thwarts efforts by impostors to insert messages into a dialogue stream.

Correct AnswerverifiedShow Answer

There is wide variation in the strengths of SSL/TLS cipher suites.

Correct AnswerverifiedShow Answer

A ________ is the person a supplicant claims to be.

Correct AnswerverifiedShow Answer

A cryptographic system is ________.

Correct AnswerverifiedShow Answer

A(n) ________ is simply a webserver as far as SSL/TLS is concerned.

Correct AnswerverifiedShow Answer

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