Question 1

The second stage of a cryptographic system standard is initial authentication.

Accepted Answer

A) True 
 B)False  False

Question 2

Quantum mechanics governs ________.

Accepted Answer

A)  national security 
B)  large-scale interactions 
C)  small-scale interactions 
D)  global security issues 
A)  national security 
B)  large-scale interactions 
C)  small-scale interactions 
D)  global security issues C

Question 3

What are IdenTrust, Sectifo, and GoDaddy?

Accepted Answer

A)  Certificate authorities 
B)  Verification authorities 
C)  Digital signature authorities 
D)  Message digest software suppliers 
A)  Certificate authorities 
B)  Verification authorities 
C)  Digital signature authorities 
D)  Message digest software suppliers A

Question 4

Who designed IPsec?

Accepted Answer

A)  Netscape 
B)  Microsoft 
C)  IETF 
D)  GoDaddy 
A)  Netscape 
B)  Microsoft 
C)  IETF 
D)  GoDaddy

Question 5

The Internet Engineering Task Force renamed ________ to the standard ________.

Accepted Answer

A)  SSL; DES 
B)  DES; 3DES 
C)  TLS; SSL 
D)  SSL; TLS 
A)  SSL; DES 
B)  DES; 3DES 
C)  TLS; SSL 
D)  SSL; TLS

Question 6

Which of the following is describes keys that are prohibitively time-consuming to crack?

Accepted Answer

A)  Strong symmetric keys 
B)  40-bit keys 
C)  56-bit keys 
D)  112-bit 3DESs 
A)  Strong symmetric keys 
B)  40-bit keys 
C)  56-bit keys 
D)  112-bit 3DESs

Question 7

Which of the following is FALSE about public key encryption ciphers?

Accepted Answer

A)  They are extremely complex. 
B)  They are slow. 
C)  They are expensive to use. 
D)  They are often used to encrypt very long messages for confidentiality. 
A)  They are extremely complex. 
B)  They are slow. 
C)  They are expensive to use. 
D)  They are often used to encrypt very long messages for confidentiality.

Question 8

What is the first task in establishing a cryptographic system?

Accepted Answer

A)  For a company to invent their own custom cryptographic protections 
B)  Selecting a cryptographic system standard for the dialogue 
C)  Handshaking tasks are performed 
D)  Verification takes place 
A)  For a company to invent their own custom cryptographic protections 
B)  Selecting a cryptographic system standard for the dialogue 
C)  Handshaking tasks are performed 
D)  Verification takes place

Question 9

Doubling the key length increases the number of possible keys by approximately double.

Accepted Answer

A) True 
 B)False

Question 10

A ________ authenticates a single message with public key encryption.

Accepted Answer

A)  public key 
B)  verification 
C)  digital signature 
D)  message digest 
A)  public key 
B)  verification 
C)  digital signature 
D)  message digest

Question 11

One hashing method that is archaic and was primarily used in the past is MD5.

Accepted Answer

A) True 
 B)False

Question 12

The weakest cipher in common use today is ________.

Accepted Answer

A)  DES 
B)  RC4 
C)  3DES 
D)  AES 
A)  DES 
B)  RC4 
C)  3DES 
D)  AES

Question 13

In IPsec, the IP refers to ________, and "sec" refers to ________.

Accepted Answer

A)  Internet Protocol; security 
B)  Internet Practice; symmetric 
C)  Internet Protocol; symmetric 
D)  intranet protocol; security 
A)  Internet Protocol; security 
B)  Internet Practice; symmetric 
C)  Internet Protocol; symmetric 
D)  intranet protocol; security

Question 14

SSL/TLS protection of application layer messages is transparent.

Accepted Answer

A) True 
 B)False

Question 15

A specific set of options in SSL/TLS is called a(n) ________.

Accepted Answer

A)  DES key 
B)  cipher suite 
C)  RSA key 
D)  symmetric key 
A)  DES key 
B)  cipher suite 
C)  RSA key 
D)  symmetric key

Question 16

A(n) ________ is when an attacker intercepts messages being sent between two parties and forwards them on.

Accepted Answer

A)  replay attack 
B)  security through obscurity attack 
C)  evil twin attack 
D)  man-in-the-middle attack 
A)  replay attack 
B)  security through obscurity attack 
C)  evil twin attack 
D)  man-in-the-middle attack

Question 17

The weakest cipher suites in a cryptographic system standard may provide no protection at all.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is NOT one of the three handshaking stages of a cryptographic system standard?

Accepted Answer

A)  Negotiation 
B)  Authentication 
C)  Communicating 
D)  Keying 
A)  Negotiation 
B)  Authentication 
C)  Communicating 
D)  Keying

Question 19

What does encryption and decryption require?

Accepted Answer

A)  Plaintext and ciphertext 
B)  A cipher and a key 
C)  A message and a key 
D)  DES and 3DES 
A)  Plaintext and ciphertext 
B)  A cipher and a key 
C)  A message and a key 
D)  DES and 3DES

Question 20

Which of the following is FALSE about hashing?

Accepted Answer

A)  It is irreversible. 
B)  It is repeatable. 
C)  It is an important part of how cryptographic systems function. 
D)  It produces ciphertext that is about as long as the plaintext that was sent. 
A)  It is irreversible. 
B)  It is repeatable. 
C)  It is an important part of how cryptographic systems function. 
D)  It produces ciphertext that is about as long as the plaintext that was sent.

The second stage of a cryptographic system standard is initial authentication.

Quantum mechanics governs ________.

What are IdenTrust, Sectifo, and GoDaddy?

Who designed IPsec?

The Internet Engineering Task Force renamed to the standard .

Which of the following is describes keys that are prohibitively time-consuming to crack?

Which of the following is FALSE about public key encryption ciphers?

What is the first task in establishing a cryptographic system?

Doubling the key length increases the number of possible keys by approximately double.

A ________ authenticates a single message with public key encryption.

One hashing method that is archaic and was primarily used in the past is MD5.

The weakest cipher in common use today is ________.

In IPsec, the IP refers to , and "sec" refers to .

SSL/TLS protection of application layer messages is transparent.

A specific set of options in SSL/TLS is called a(n) ________.

A(n) ________ is when an attacker intercepts messages being sent between two parties and forwards them on.

The weakest cipher suites in a cryptographic system standard may provide no protection at all.

Which of the following is NOT one of the three handshaking stages of a cryptographic system standard?

What does encryption and decryption require?

Which of the following is FALSE about hashing?

The Threat Environment

Planning and Policy

Secure Networks

Access Control

Firewalls

Host Hardening

Application Security

Data Protection

Incident and Disaster Response

Module a Networking Concepts

Filters

Exam 3: Cryptography

The second stage of a cryptographic system standard is initial authentication.

Quantum mechanics governs ________.

What are IdenTrust, Sectifo, and GoDaddy?

Who designed IPsec?

The Internet Engineering Task Force renamed ________ to the standard ________.

Which of the following is describes keys that are prohibitively time-consuming to crack?

Which of the following is FALSE about public key encryption ciphers?

What is the first task in establishing a cryptographic system?

Doubling the key length increases the number of possible keys by approximately double.

A ________ authenticates a single message with public key encryption.

One hashing method that is archaic and was primarily used in the past is MD5.

The weakest cipher in common use today is ________.

In IPsec, the IP refers to ________, and "sec" refers to ________.

SSL/TLS protection of application layer messages is transparent.

A specific set of options in SSL/TLS is called a(n) ________.

A(n) ________ is when an attacker intercepts messages being sent between two parties and forwards them on.

The weakest cipher suites in a cryptographic system standard may provide no protection at all.

Which of the following is NOT one of the three handshaking stages of a cryptographic system standard?

What does encryption and decryption require?

Which of the following is FALSE about hashing?

The Threat Environment

Planning and Policy

Secure Networks

Access Control

Firewalls

Host Hardening

Application Security

Data Protection

Incident and Disaster Response

Module a Networking Concepts

Filters

The Internet Engineering Task Force renamed to the standard .

In IPsec, the IP refers to , and "sec" refers to .