Chapter 2

Question 1

Which OSI layer is associated with IP addressing?

Answer 1

Layer 3

Question 2

The elements of communication include a message source, a message destination, and
a ___________________, or medium, to transport the message

Answer 2

channel

Question 3

Which type of addressing is found at the OSI Layer 2? (Choose two.)

Answer 3

B, C. A MAC address is the physical address burned on to the OSI Layer 2 network
interface card. Logical addressing happens at OSI Layer 3.

Question 4

When a server responds to a web request, what occurs next in the encapsulation process after the web page data is formatted and separated into TCP segments?

Answer 4

D. Encapsulating into TCP segments occurs at OSI Layer 4, so the next encapsulation is at OSI Layer 3

Question 5

Which term describes a specific set of rules that determine the formatting of messages
and the process of encapsulation used to forward data?

Answer 5

B. Protocol

Question 6

A limited-use protocol owned by a company is considered to be _________________________.

Answer 6

proprietary

Question 7

Which one of the following is associated with Layer 4 of the OSI model?

Answer 7

B. TCP

Question 8

The device that connects a device to the media is called a/an _________________________.

Answer 8

network interface card

Question 9

Which of the following terms defines dividing data streams into smaller pieces suitable for transmission?

Answer 9

C. Segmentation

Question 10

A device that moves data between networks is a _______________.

Answer 10

router

Question 11

Which of the following is the process for interweaving multiple data streams onto one
shared communication channel or network medium?
A. Multicasting
B. Multiplexing
C. Encapsulation
D. Multidirecting

Answer 11

B. Multiplexing

Question 12

Which of the following is associated with the network layer?
A. IP address
B. Frames
C. MAC address
D. Physical addressing

Answer 12

A. IP Address

Question 13

Which of the following is the correct “top down” order of the OSI model?
A. Application, presentation, session, network, transport, data link, physical
B. Application, presentation, session, transport, network, data link, physical
C. Application, session, presentation, transport, network, data link, physical
D. Application, presentation, session, network, data link, transport, physical

Answer 13

B.

Question 14

Which layer of the OSI model is concerned with end-to-end message delivery over the
network?
A. Network
B. Transport
C. Data link
D. Application

Answer 14

B. Transport

Question 15

Which layers of the OSI model are combined into other layers of the TCP/IP model? (Choose all that apply.)

A. Network
B. Presentation
C. Internet
D. Data link
E. Application
F. Physical
G. Session
H. Network access
I. Transport

Answer 15

B, D, F, G.

The OSI presentation and session layers are combined into the application
layer of the TCP/IP model.

The OSI data link and physical layers are combined into the network access layer of TCP/IP.

Question 16

Which of the following are true about LANs and WANs? (Choose two.)

A. LANs connect groups of networks using ISPs.
B. LANs consist of hosts communicating with logical addresses.
C. WANs connect groups of networks using TSPs.
D. WANs connect LANs.
E. Hosts on a LAN use physical addressing to communicate.

Answer 16

C, E. LANs are connected by WANs. WANs connect networks through telephone service providers (TSP). Logical addressing is used between networks, and physical addressing, or MAC addresses, are used inside LANs