Question 1

In the OSI model, level 1 is the ____ layer.

Accepted Answer

A)   physical
B)   data link
C)   transport
D)   applicationE) B) and C)
F) A) and D)

Question 2

Describe each generation of firewalls.

Accepted Answer

First-generation firewalls are static pa...

Question 3

____ are commonly used to connect two companies networks over the Internet in a site-to-site configuration.

Accepted Answer

A)   Bastion hosts
B)   VPNs
C)   Proxy servers
D)   Stateful proxiesE) None of the above
F) B) and D)

Question 4

What is User Datagram Protocol (UDP)?

Accepted Answer

This protocol is similar to TCP in that ...

Question 5

Packet-filtering firewalls examine every incoming packet _____ and can selectively filter packets.

Accepted Answer

A)   transport
B)   session
C)   header
D)   dataE) A) and B)
F) C) and D)

Question 6

How do firewalls help document what happens on a network?

Accepted Answer

Every firewall should be configured to p...

Question 7

A(n) ____________________ is an extended network that shares part of an organization's network with third parties.

Accepted Answer

The answer of A(n) ____________________ is an extended network that...

Question 8

Firewalls can be used to host ____ to reduce server load and improve Web-site performance.

Accepted Answer

A)   logging
B)   shielding hosts
C)   VPN
D)   cached dataE) All of the above
F) B) and D)

Question 9

A firewall may also help prevent some Trojan horses from leveraging the local network through unauthorized service ports called ____.

Accepted Answer

A)   back doors
B)   application proxies
C)   perimeters
D)   content locksE) B) and D)
F) None of the above

Question 10

What are some of the advanced security functions provided by modern firewalls?

Accepted Answer

Logging unauthorized (as well as authori...

Question 11

Match each item with a statement below.
-Function as an outbound network-level proxy.

Accepted Answer

A)  PAT and NAT
B)  bastion host
C)  application proxy
D)  extranet
E)  headerF) perimeterG) dataH) portI) packet filteringJ) C) and F)
K) D) and G)

Question 12

Match each item with a statement below.
-Consists of general information about the size of the packet, the protocol that was used to send it, and the IP address of both the source computer and the destination

Accepted Answer

A)  PAT and NAT
B)  bastion host
C)  application proxy
D)  extranet
E)  headerF) perimeterG) dataH) portI) packet filteringJ) A) and B)
K) A) and E)

Question 13

____ firewalls can be used to perform load balancing.

Accepted Answer

A)   Application gateway
B)   Stateful
C)   Stateless
D)   NATE) C) and D)
F) B) and C)

Question 14

Firewalls provide ____ services by examining packet headers and allowing traffic that conforms to estalished rules to continue.

Accepted Answer

A)   packet filtering
B)   NAT
C)   application proxy
D)   TCP/IPE) A) and B)
F) C) and D)

Question 15

A ____ firewall enables you to log passing traffic, protecting the whole network at one time.

Accepted Answer

A)   stateful
B)   stateless
C)   perimeter
D)   DMZE) None of the above
F) All of the above

Question 16

A firewall is designed to prevent all attackers, viruses, and would-be intruders from entering a computer or computer network.

Accepted Answer

A) True 
 B)False

Question 17

Ports numbers range from 0 to ____.

Accepted Answer

A)   1024
B)   3999
C)   65,535
D)   786,568E) A) and D)
F) C) and D)

Question 18

Port numbers come in two flavors: well-known ports and ____________________ ports.

Accepted Answer

The answer of Port numbers come in two flavors: well-known...

Question 19

Mobile devices such as laptops, PDAs, and smartphones blur the perimeter boundary.

Accepted Answer

A) True 
 B)False

Question 20

____________________ inspection blocks packets that are sent from an external computer that does not have a currently active connection to an internal computer.

Accepted Answer

The answer of ____________________ inspection blocks packets that are sent...

Exam 4: Introduction to Firewalls

In the OSI model, level 1 is the ____ layer.

Correct AnswerverifiedShow Answer

What are some of the advanced security functions provided by modern firewalls?

Correct AnswerverifiedLogging unauthorized (as well as authori...View AnswerShow Answer

What is User Datagram Protocol (UDP)?

Correct AnswerverifiedThis protocol is similar to TCP in that ...View AnswerShow Answer

____________________ inspection blocks packets that are sent from an external computer that does not have a currently active connection to an internal computer.

Correct AnswerverifiedShow Answer

Mobile devices such as laptops, PDAs, and smartphones blur the perimeter boundary.

Correct AnswerverifiedShow Answer

Ports numbers range from 0 to ____.

Correct AnswerverifiedShow Answer

Match each item with a statement below. -Function as an outbound network-level proxy.

Correct AnswerverifiedShow Answer

Describe each generation of firewalls.

Correct AnswerverifiedFirst-generation firewalls are static pa...View AnswerShow Answer

A(n) ____________________ is an extended network that shares part of an organization's network with third parties.

Correct AnswerverifiedShow Answer

Firewalls provide ____ services by examining packet headers and allowing traffic that conforms to estalished rules to continue.

Correct AnswerverifiedShow Answer

Packet-filtering firewalls examine every incoming packet _____ and can selectively filter packets.

Correct AnswerverifiedShow Answer

How do firewalls help document what happens on a network?

Correct AnswerverifiedEvery firewall should be configured to p...View AnswerShow Answer

A ____ firewall enables you to log passing traffic, protecting the whole network at one time.

Correct AnswerverifiedShow Answer

Match each item with a statement below. -Consists of general information about the size of the packet, the protocol that was used to send it, and the IP address of both the source computer and the destination

Correct AnswerverifiedShow Answer

____ are commonly used to connect two companies networks over the Internet in a site-to-site configuration.

Correct AnswerverifiedShow Answer

A firewall may also help prevent some Trojan horses from leveraging the local network through unauthorized service ports called ____.

Correct AnswerverifiedShow Answer

____ firewalls can be used to perform load balancing.

Correct AnswerverifiedShow Answer

Firewalls can be used to host ____ to reduce server load and improve Web-site performance.

Correct AnswerverifiedShow Answer

Port numbers come in two flavors: well-known ports and ____________________ ports.

Correct AnswerverifiedShow Answer

A firewall is designed to prevent all attackers, viruses, and would-be intruders from entering a computer or computer network.

Correct AnswerverifiedShow Answer

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Logging unauthorized (as well as authori...
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This protocol is similar to TCP in that ...
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Correct Answer
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First-generation firewalls are static pa...
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Every firewall should be configured to p...
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