Question 1

Using new and proprietary encryption ciphers is a good idea because cryptanalysts will not know them.

Accepted Answer

A) True 
 B)False

Question 2

In public key encryption for authentication, the verifier decrypts the ciphertext with the verifier's public key.

Accepted Answer

A) True 
 B)False

Question 3

Proving your identity to a communication partner is ________.

Accepted Answer

A)  validation 
B)  identification 
C)  authentication 
D)  certification 
A)  validation 
B)  identification 
C)  authentication 
D)  certification

Question 4

The person the supplicant claims to be is the true party.

Accepted Answer

A) True 
 B)False

Question 5

In cryptographic systems, the negotiation of security methods and options takes place during the ________ handshaking stage.

Accepted Answer

A)  first 
B)  second 
C)  third 
D)  None of the above 
A)  first 
B)  second 
C)  third 
D)  None of the above

Question 6

Nonces can be used in ________.

Accepted Answer

A)  all applications 
B)  client/server applications 
C)  time-insensitive applications 
D)  persistent applications 
A)  all applications 
B)  client/server applications 
C)  time-insensitive applications 
D)  persistent applications

Question 7

Companies transmit over the wireless LANs because WLANs ________.

Accepted Answer

A)  are inexpensive 
B)  are secure 
C)  Both A and B 
D)  Neither A nor B 
A)  are inexpensive 
B)  are secure 
C)  Both A and B 
D)  Neither A nor B

Question 8

Julia encrypts a message to David using public key encryption for confidentiality. After encrypting the message, can Julia decrypt it?

Accepted Answer

A) True 
 B)False

Question 9

Packaged sets of cryptographic countermeasures for protecting data transmission are ________.

Accepted Answer

A)  cryptographic standards 
B)  metacryptographic systems 
C)  cryptographic systems 
D)  All of the above 
A)  cryptographic standards 
B)  metacryptographic systems 
C)  cryptographic systems 
D)  All of the above

Question 10

MS-CHAP is used for ________ authentication.

Accepted Answer

A)  initial 
B)  message-by-message 
C)  Both A and B 
D)  Neither A nor B 
A)  initial 
B)  message-by-message 
C)  Both A and B 
D)  Neither A nor B

Question 11

IPsec tunnel mode ________.

Accepted Answer

A)  provides host-to-host protection 
B)  is firewall-friendly 
C)  Both A and B 
D)  Neither A nor B 
A)  provides host-to-host protection 
B)  is firewall-friendly 
C)  Both A and B 
D)  Neither A nor B

Question 12

The most popular public key encryption cipher is ________.

Accepted Answer

A)  AES 
B)  DES 
C)  RSA 
D)  ECC 
A)  AES 
B)  DES 
C)  RSA 
D)  ECC

Question 13

Which of the following fields are contained on a digital certificate?

Accepted Answer

A)  Public key 
B)  Digital signature 
C)  Serial number 
D)  All of the above 
A)  Public key 
B)  Digital signature 
C)  Serial number 
D)  All of the above

Question 14

When you make a purchase over the Internet, your sensitive traffic is almost always protected by ________ VPN transmission.

Accepted Answer

A)  SSL/TLS 
B)  IPsec 
C)  Both A and B 
D)  Neither A nor B 
A)  SSL/TLS 
B)  IPsec 
C)  Both A and B 
D)  Neither A nor B

Question 15

Most message-by-message authentication methods provide message integrity as a by-products.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following layers does IPsec protect?

Accepted Answer

A)  The transport layer 
B)  The application layer 
C)  Both of the above 
D)  Neither of the above 
A)  The transport layer 
B)  The application layer 
C)  Both of the above 
D)  Neither of the above

Question 17

The hash size in SHA-1 is 160 bits.

Accepted Answer

A) True 
 B)False

Question 18

A ________ is a mathematical process used in encryption and decryption.

Accepted Answer

A)  key 
B)  cipher 
C)  plaintext 
D)  coding method 
A)  key 
B)  cipher 
C)  plaintext 
D)  coding method

Question 19

Site-to-site VPNs typically decrypt messages when they arrive from the outside.

Accepted Answer

A) True 
 B)False

Question 20

The first task in establishing a cryptographic system is selecting a cryptographic system standard for the dialogue.

Accepted Answer

A) True 
 B)False

Using new and proprietary encryption ciphers is a good idea because cryptanalysts will not know them.

In public key encryption for authentication, the verifier decrypts the ciphertext with the verifier's public key.

Proving your identity to a communication partner is ________.

The person the supplicant claims to be is the true party.

In cryptographic systems, the negotiation of security methods and options takes place during the ________ handshaking stage.

Nonces can be used in ________.

Companies transmit over the wireless LANs because WLANs ________.

Julia encrypts a message to David using public key encryption for confidentiality. After encrypting the message, can Julia decrypt it?

Packaged sets of cryptographic countermeasures for protecting data transmission are ________.

MS-CHAP is used for ________ authentication.

IPsec tunnel mode ________.

The most popular public key encryption cipher is ________.

Which of the following fields are contained on a digital certificate?

When you make a purchase over the Internet, your sensitive traffic is almost always protected by ________ VPN transmission.

Most message-by-message authentication methods provide message integrity as a by-products.

Which of the following layers does IPsec protect?

The hash size in SHA-1 is 160 bits.

A ________ is a mathematical process used in encryption and decryption.

Site-to-site VPNs typically decrypt messages when they arrive from the outside.

The first task in establishing a cryptographic system is selecting a cryptographic system standard for the dialogue.

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

Using new and proprietary encryption ciphers is a good idea because cryptanalysts will not know them.

In public key encryption for authentication, the verifier decrypts the ciphertext with the verifier's public key.

Proving your identity to a communication partner is ________.

The person the supplicant claims to be is the true party.

In cryptographic systems, the negotiation of security methods and options takes place during the ________ handshaking stage.

Nonces can be used in ________.

Companies transmit over the wireless LANs because WLANs ________.

Julia encrypts a message to David using public key encryption for confidentiality. After encrypting the message, can Julia decrypt it?

Packaged sets of cryptographic countermeasures for protecting data transmission are ________.

MS-CHAP is used for ________ authentication.

IPsec tunnel mode ________.

The most popular public key encryption cipher is ________.

Which of the following fields are contained on a digital certificate?

When you make a purchase over the Internet, your sensitive traffic is almost always protected by ________ VPN transmission.

Most message-by-message authentication methods provide message integrity as a by-products.

Which of the following layers does IPsec protect?

The hash size in SHA-1 is 160 bits.

A ________ is a mathematical process used in encryption and decryption.

Site-to-site VPNs typically decrypt messages when they arrive from the outside.

The first task in establishing a cryptographic system is selecting a cryptographic system standard for the dialogue.

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