Question 1

Describe how symmetric encryption works, draw a chart of this approach.How does DES differ from 3DES? From RC4? From AES?

Accepted Answer

Symmetric encryption works by using a si

Question 2

An) ___________ is one of the most common examples of redundancy built into a network to help reduce the impact of disruption.

Accepted Answer

A) network cloaking device 
B) backup punch card reader 
C) uninterruptible power supply 
D) service level agreement 
E) help desk 
A) network cloaking device 
B) backup punch card reader 
C) uninterruptible power supply 
D) service level agreement 
E) help desk

Question 3

A NAT firewall uses an address table to translate private IP addresses used inside the organization into proxy data link layer addressed used on the Internet.

Accepted Answer

A) True 
 B)False

Question 4

In transport mode, IPSec encrypts the entire IP packet.

Accepted Answer

A) True 
 B)False

Question 5

Crackers are casual hackers with a limited knowledge of computer security.

Accepted Answer

A) True 
 B)False

Question 6

How does IPS anomaly detection differ from misuse detection?

Accepted Answer

Intrusion Prevention Systems (IPS) can e

Question 7

DES is a commonly used symmetric encryption algorithm developed in the mid-1990s by the American government in conjunction with IBM.

Accepted Answer

A) True 
 B)False

Question 8

IP Security Protocol:

Accepted Answer

A) is focused on Web applications 
B) is primarily used to encrypt e-mail 
C) is a policy which makes public key encryption work on the Internet 
D) sits between IP at the network layer and TCP/UDP at the transport layer 
E) operates in entrapment mode 
A) is focused on Web applications 
B) is primarily used to encrypt e-mail 
C) is a policy which makes public key encryption work on the Internet 
D) sits between IP at the network layer and TCP/UDP at the transport layer 
E) operates in entrapment mode

Question 9

A brute force attack against an encryption system:

Accepted Answer

A) tries to gain access by trying every possible key 
B) is called RC4 
C) is also known as 3DES 
D) always uses the Rijndael algorithm 
E) is part of the Advanced Encyrption Standard 
A) tries to gain access by trying every possible key 
B) is called RC4 
C) is also known as 3DES 
D) always uses the Rijndael algorithm 
E) is part of the Advanced Encyrption Standard

Question 10

How does a packet level firewall work? Describe the proxy server function, the packet layer firewall function, the DMZ and the architecture of this design.

Accepted Answer

A packet level firewall works by examini

Question 11

How does PGP differ from SSL? How does SSL differ from IPsec? Compare and contrast IPSec tunnel mode and IPSec transfer mode.

Accepted Answer

PGP (Pretty Good Privacy) and SSL (Secur

Question 12

What is social engineering?

Accepted Answer

The answer of What is social engineering?...

Question 13

Which of the following is not one of the major categories or sub-categories) into which network security threats can be placed?

Accepted Answer

A) disruption 
B) destruction 
C) controlled chaos 
D) intrusion 
E) disaster 
A) disruption 
B) destruction 
C) controlled chaos 
D) intrusion 
E) disaster

Question 14

Often, incidents of ___________ involve employees of the organization, surprisingly enough.

Accepted Answer

A) intrusion 
B) disruption 
C) controlled chaos 
D) destruction 
E) disaster 
A) intrusion 
B) disruption 
C) controlled chaos 
D) destruction 
E) disaster

Question 15

Compare and contrast DES and public key encryption.

Accepted Answer

DES (Data Encryption Standard) and publi

Question 16

Network cables are the easiest target for eavesdropping.

Accepted Answer

A) True 
 B)False

Question 17

Explain how a Trojan horse works.

Accepted Answer

A Trojan horse, in the context of comput

Question 18

An) ____________ acts an intermediate host computer or gateway between the Internet and the rest of the organization's networks.

Accepted Answer

A) application level firewall 
B) bullion server 
C) ANI system 
D) IP spoofing systems 
E) packet level firewall 
A) application level firewall 
B) bullion server 
C) ANI system 
D) IP spoofing systems 
E) packet level firewall

Question 19

Spyware, adware and DDOS agents are three types of:

Accepted Answer

A) IP spoofing attacks 
B) Denial-of-service attacks 
C) Trojans 
D) Physical security threats 
E) Intrusion prevention detection approaches 
A) IP spoofing attacks 
B) Denial-of-service attacks 
C) Trojans 
D) Physical security threats 
E) Intrusion prevention detection approaches

Question 20

The rise of the Internet has increased significantly the potential vulnerability of an organization's assets.

Accepted Answer

A) True 
 B)False

Describe how symmetric encryption works, draw a chart of this approach.How does DES differ from 3DES? From RC4? From AES?

An) ___________ is one of the most common examples of redundancy built into a network to help reduce the impact of disruption.

A NAT firewall uses an address table to translate private IP addresses used inside the organization into proxy data link layer addressed used on the Internet.

In transport mode, IPSec encrypts the entire IP packet.

Crackers are casual hackers with a limited knowledge of computer security.

How does IPS anomaly detection differ from misuse detection?

DES is a commonly used symmetric encryption algorithm developed in the mid-1990s by the American government in conjunction with IBM.

IP Security Protocol:

A brute force attack against an encryption system:

How does a packet level firewall work? Describe the proxy server function, the packet layer firewall function, the DMZ and the architecture of this design.

How does PGP differ from SSL? How does SSL differ from IPsec? Compare and contrast IPSec tunnel mode and IPSec transfer mode.

What is social engineering?

Which of the following is not one of the major categories or sub-categories) into which network security threats can be placed?

Often, incidents of ___________ involve employees of the organization, surprisingly enough.

Compare and contrast DES and public key encryption.

Network cables are the easiest target for eavesdropping.

Explain how a Trojan horse works.

An) ____________ acts an intermediate host computer or gateway between the Internet and the rest of the organization's networks.

Spyware, adware and DDOS agents are three types of:

The rise of the Internet has increased significantly the potential vulnerability of an organization's assets.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Network Design

Wired and Wireless Local Area Networks

Backbone Networks

Wide Area Networks

The Internet

Network Management

Filters

Exam 11: Network Security

Describe how symmetric encryption works, draw a chart of this approach.How does DES differ from 3DES? From RC4? From AES?

An) ___________ is one of the most common examples of redundancy built into a network to help reduce the impact of disruption.

A NAT firewall uses an address table to translate private IP addresses used inside the organization into proxy data link layer addressed used on the Internet.

In transport mode, IPSec encrypts the entire IP packet.

Crackers are casual hackers with a limited knowledge of computer security.

How does IPS anomaly detection differ from misuse detection?

DES is a commonly used symmetric encryption algorithm developed in the mid-1990s by the American government in conjunction with IBM.

IP Security Protocol:

A brute force attack against an encryption system:

How does a packet level firewall work? Describe the proxy server function, the packet layer firewall function, the DMZ and the architecture of this design.

How does PGP differ from SSL? How does SSL differ from IPsec? Compare and contrast IPSec tunnel mode and IPSec transfer mode.

What is social engineering?

Which of the following is not one of the major categories or sub-categories) into which network security threats can be placed?

Often, incidents of ___________ involve employees of the organization, surprisingly enough.

Compare and contrast DES and public key encryption.

Network cables are the easiest target for eavesdropping.

Explain how a Trojan horse works.

An) ____________ acts an intermediate host computer or gateway between the Internet and the rest of the organization's networks.

Spyware, adware and DDOS agents are three types of:

The rise of the Internet has increased significantly the potential vulnerability of an organization's assets.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Network Design

Wired and Wireless Local Area Networks

Backbone Networks

Wide Area Networks

The Internet

Network Management

Filters