Chapter 1: What Is a Computer Network?
TRUE/FALSE
1. All nodes in a bus network are connected to the same communication link.
ANS: T PTS: 1 REF: 3
2. Pulling copper wire, or even fiber, throughout a building may be the least expensive solution for a
network.
ANS: F PTS: 1 REF: 3
3. Just throwing 1s and 0s onto a communication link is enough to establish coherent
communication between two nodes in a network.
ANS: F PTS: 1 REF: 5
4. In the Physical Layer, the encoding technique, the type of connector used, and the data rate, all of
which are physical properties, are established.
ANS: T PTS: 1 REF: 6
5. The high collision rate of an Ethernet system with a lot of communication taking place is
eliminated in a token-ring network.
ANS: T PTS: 1 REF: 9
MULTIPLE CHOICE
,1. The ____ of a computer network is the way the individual computers or devices are connected.
a. technology c. medium
b. topology d. mode
ANS: B PTS: 1 REF: 2
2. In ____, phase transitions are used to represent the digital data.
a. Hamming encoding c. Manheim encoding
b. Turing encoding d. Manchester encoding
ANS: D PTS: 1 REF: 4
3. The ____ reference model defines seven layers required to establish reliable communication
between two nodes.
a. Open Systems Incorporated c. Open Systems Interconnection
b. Open Structure Interconnect d. Open Systems Interface
ANS: C PTS: 1 REF: 5-6
4. The ____ Layer takes care of framing data, error detection, and maintains flow control over the
physical connection.
a. Network c. Transport
b. Data-Link d. Session
ANS: B PTS: 1 REF: 6
5. The _____ Layer is responsible for routing protocol-specific packets to their proper destination
using logical IP addressing.
, a. Network c. Transport
b. Data-Link d. Session
ANS: A PTS: 1 REF: 6
6. Each device connected to the 10base2 Ethernet must contain a ____ that provides the electronic
connection between the device and the coaxial cable commonly used to connect nodes.
a. transporter c. transmitter
b. receiver d. transceiver
ANS: D PTS: 1 REF: 7
7. Each Ethernet device has its own unique ____.
a. octal address c. IP address
b. binary address d. home address
ANS: B PTS: 1 REF: 8
8. When every device on the Ethernet LAN receives data from one device, it is called ____.
a. spraying c. broadcasting
b. transmitting d. delivering
ANS: C PTS: 1 REF: 8
9. The format in which Ethernet transmits data is called a ____.
a. block c. unit
b. cell d. frame
, ANS: D PTS: 1 REF: 8
10. Token-ring frames are similar to Ethernet frames in that both contain ____ addresses.
a. source and destination c. origin and interface
b. source and origin d. source and network
ANS: A PTS: 1 REF: 9
COMPLETION
1. The ____________________ connection scheme puts the nodes into a circular communication
path.
ANS: ring
PTS: 1 REF: 3
2. Different ____________________ are used between layers of the OSI model to handle such
things as error recovery and information routing between nodes.
ANS: protocols
PTS: 1 REF: 6
3. The application program interfaces directly with the operating system to perform all network
related activities by using a(n) ___________________________________.
ANS:
Application Programming Interface
TRUE/FALSE
1. All nodes in a bus network are connected to the same communication link.
ANS: T PTS: 1 REF: 3
2. Pulling copper wire, or even fiber, throughout a building may be the least expensive solution for a
network.
ANS: F PTS: 1 REF: 3
3. Just throwing 1s and 0s onto a communication link is enough to establish coherent
communication between two nodes in a network.
ANS: F PTS: 1 REF: 5
4. In the Physical Layer, the encoding technique, the type of connector used, and the data rate, all of
which are physical properties, are established.
ANS: T PTS: 1 REF: 6
5. The high collision rate of an Ethernet system with a lot of communication taking place is
eliminated in a token-ring network.
ANS: T PTS: 1 REF: 9
MULTIPLE CHOICE
,1. The ____ of a computer network is the way the individual computers or devices are connected.
a. technology c. medium
b. topology d. mode
ANS: B PTS: 1 REF: 2
2. In ____, phase transitions are used to represent the digital data.
a. Hamming encoding c. Manheim encoding
b. Turing encoding d. Manchester encoding
ANS: D PTS: 1 REF: 4
3. The ____ reference model defines seven layers required to establish reliable communication
between two nodes.
a. Open Systems Incorporated c. Open Systems Interconnection
b. Open Structure Interconnect d. Open Systems Interface
ANS: C PTS: 1 REF: 5-6
4. The ____ Layer takes care of framing data, error detection, and maintains flow control over the
physical connection.
a. Network c. Transport
b. Data-Link d. Session
ANS: B PTS: 1 REF: 6
5. The _____ Layer is responsible for routing protocol-specific packets to their proper destination
using logical IP addressing.
, a. Network c. Transport
b. Data-Link d. Session
ANS: A PTS: 1 REF: 6
6. Each device connected to the 10base2 Ethernet must contain a ____ that provides the electronic
connection between the device and the coaxial cable commonly used to connect nodes.
a. transporter c. transmitter
b. receiver d. transceiver
ANS: D PTS: 1 REF: 7
7. Each Ethernet device has its own unique ____.
a. octal address c. IP address
b. binary address d. home address
ANS: B PTS: 1 REF: 8
8. When every device on the Ethernet LAN receives data from one device, it is called ____.
a. spraying c. broadcasting
b. transmitting d. delivering
ANS: C PTS: 1 REF: 8
9. The format in which Ethernet transmits data is called a ____.
a. block c. unit
b. cell d. frame
, ANS: D PTS: 1 REF: 8
10. Token-ring frames are similar to Ethernet frames in that both contain ____ addresses.
a. source and destination c. origin and interface
b. source and origin d. source and network
ANS: A PTS: 1 REF: 9
COMPLETION
1. The ____________________ connection scheme puts the nodes into a circular communication
path.
ANS: ring
PTS: 1 REF: 3
2. Different ____________________ are used between layers of the OSI model to handle such
things as error recovery and information routing between nodes.
ANS: protocols
PTS: 1 REF: 6
3. The application program interfaces directly with the operating system to perform all network
related activities by using a(n) ___________________________________.
ANS:
Application Programming Interface
