Computer security fundamentals 2nd edition william chuck easttom test bank

CHAPTER 2: NETWORKS AND THE INTERNET

Multiple Choice
1. What type of cable do most networks use?
A.

Net cable

B.

Category 3 cable

C.

Phone cable

D.

Category 5 cable

The answer is D
2. The connector used with network cables is called what?
A.

RJ-11

B.

RJ-85

C.

RJ-12

D.

RJ-45

The answer is D
3. The cable used in networks is also referred to as what?
A.

Unshielded twisted pair

B.

Shielded twisted pair

C.

Unshielded untwisted pair

D.

Shielded untwisted pair

The answer is A
4. The simplest device for connecting computers is called what?
A.

NIC

B.

Interface

C.

Hub

D.

Router
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The answer is C
5. What is a NIC?
A.

Network interface card.

B.

Network interaction card

C.

Network interface connector

D.

Network interaction connector

The answer is A
6. A device used to connect two or more networks together is a what?
A.

Switch

B.

Router

C.

Hub

D.

NIC

The answer is B
7. A T1 line sends data at what speed?
A.

100Mbps

B.

1.54Mbps

C.

155Mbps

D.

56.6Kbps

The answer is B
8. How big is a TCP packet header?
A.

The size is dependent on the data being sent.

B.

The size is always 20 bytes.

C.

The size is dependent on the protocol being used.

D.

The size is always 40 bytes.

The answer is B
9. A protocol that translates web addresses into IP addresses is called what?
A.

DNS

B.

TFTP

C.

DHCP
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D.

SMTP

The answer is A
10.What protocol is used to send email, and on what port does it work?
A.

SMTP, port 110

B.

POP3, port 25

C.

SMTP, port 25

D.

POP3, port 110

The answer is C
11.What protocol is used for remotely logging on to a computer?
A.

Telnet

B.

HTTP

C.

DNS

D.

SMTP

The answer is A
12.What protocol is used for web pages, and what port does it work on?
A.

HTTP, port 21

B.

HTTP, port 80

C.

DHCP, port 80

D.

DHCP, port 21

The answer is B
13.The point where the backbones of the Internet connect is called what?
A.

Connectors

B.

Routers

C.

Network access points

D.

Switches

The answer is C

14.Which of the following is not a valid IP address?
A.

127.0.0.1

B.

295.253.254.01
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C.

127.256.5.2

D.

245.200.11.1

The answer is B
15.What class would the IP address of 193.44.34.12 be?
A.

A

B.

B

C.

C

D.

D

The answer is C
16.The IP address of 127.0.0.1 always refers to your what?
A.

Nearest router

B.

ISP

C.

Self

D.

Nearest NAP

The answer is C
17.Internet addresses of the form www.chuckeasttom.com are called what?
A.

User-friendly web addresses

B.

Uniform resource locators

C.

User-accessible web addresses

D.

Uniform address identifiers

The answer is B
18.Which U.S. government agency created the distributed network that formed the
basis for the Internet?
A.

Advanced Research Projects Agency

B.

Central Intelligence Agency

C.

NASA

D.

Department of Energy

The answer is A

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19.Which of the following was one of the three universities involved in the original
distributed network setup by a government agency?
A.

Berkeley

B.

Harvard

C.

MIT

D.

Princeton

The answer is A
20.Vince Cerf invented what?
A.

The World Wide Web

B.

Email

C.

TCP

D.

The first computer virus

The answer is C
The answer is A
21.Tim Berners-Lee invented what?
A.

The World Wide Web

B.

Email

C.

TCP

D.

The first computer virus

The answer is A
22.Which utility gives you information about your machine’s network configuration?
A.

Ping

B.

IPConfig

C.

Tracert

D.

MyConfig

The answer is B
23.The TCP protocol operates at what layer of the OSI model?
A.

Transport

B.

Application

C.

Network
5


D.

Data link

The answer is A
24.Which layer of the OSI model is divided into two sublayers?
A.

Data link

B.

Network

C.

Presentation

D.

Session

The answer is A
25.A unique hexadecimal number that identifies your network card is called what?

A.

A NIC address

B.

A MAC address

C.

A NIC ID

D.

A MAC ID

The answer is B
Fill in the Blank:
1.

A(n) ____________ is a card that allows a computer to connect to another computer or to a network.

Answer: Network Interface Card (NIC) Reference: Network Basics
2.

The ____________ is the method that a secondary DNS server uses to update its information from the
primary DNS server.

Answer: zone transfer Reference: DNS Servers
3.

Reference: The Physical Connection: Local Networks
Reference: The Physical Connection: Internet

Reference: IP Addresses

Difficulty: easy

____________, a commonly used DOS command, sends a test packet to determine whether a machine is
reachable.

Answer: Ping
7.

Difficulty: moderate

A(n) ____________ is a special IP number (127.0.0.1) that designates the machine you are on regardless of
its IP address.

Answer: loop back address
6.

Difficulty: easy

The basic purpose of a cable is to transmit ____________ from one machine to another.

Answer: packets
5.

Difficulty: moderate

The number of bits that a cable can transmit is called ____________.

Answer: bandwidth
4.

Difficulty: easy

Reference: Basic Network Utilities

Difficulty: easy

The purpose of a ______________ is to hide your network from the outside world.
6


Answer: proxy server

Reference: Other Network Devices

Difficulty: easy

Matching:
8.

Match the following terms to their meanings:
I.

Application A. Connects the entity to the transmission media

II.

Presentation B. Provides end-to-end communication control

III. Session

C. Handles problems that are not communication issues

IV. Transport

D. Converts the information

V.

E. Provides error control between adjacent nodes

Network

VI. Data link

F. Routes the information in the network

VII. Physical

G. Provides different services to the applications

Answer: G D C B F E A
9.

Reference: The OSI Model

Match the following terms to their meanings:
I.

Domain Name Server (DNS) A. Holds duplicate URL/IP information

II.

Primary DNS

B. Sends changes from one server to another

III. Secondary DNS

C. Holds the master copy of URL/IP information

IV. Zone transfer
Answer: D C A B
10.

D. Translates domain names into IP addresses
Reference: DNS Servers

Difficulty: moderate

Match the following cable types and their uses:
I.

Analog

II.

Up to 20 MHz /16 Mbps B. Telephone

A. Voice transmission

III. 100 MHz/100 Mbps

C. High-speed networks

IV. 250 MHz/1,000 Mbps

D. Standard speed networks

Answer: B A D C
11.

Difficulty: hard

Reference: The Physical Connection: Local Networks

Match the following terms to their meanings:
I.

TCP A. Protocol that specifies the format and addressing scheme of a packet

II.

IP

B. Protocol used to extract error and control messages

III. UDP C. Protocol that establishes a connection for the exchange of data
IV. ICMP
Answer: C A D B
12.

Difficulty: moderate

D. Protocol that does not guarantee delivery of packets
Reference: Data Transmission Difficulty: moderate

Match the following code series message to their meaning:
I.

100 series

A. Messages refer to client errors

II.

200 series

B. Messages are simply informational

III. 300 series

C. Messages refer to server errors

IV. 400 series

D. Messages indicate successful connections
7


V.

500 series

Answer: B D E A C
13.

E. Messages indicate that the Web site has moved
Reference: Uniform Resource Locators Difficulty: hard

Match the following terms to their meanings:
I.

Ping A. Shows how many hops a packet needs to reach a host and the length of time

II.

flag B. Gives information about your connection to the Internet

II.

IPConfig

III. Tracert
way

Answer: C D B A

C. Used to send a test packet and determine whether an IP address is reachable
D. Parameters that can be passed to commands to make the computer behave in a certain
Reference: Basic Network Utilities

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Difficulty: easy