Chapter 7

Question 1

The network operating system​ (NOS) ________.

A. is always the same as the operating system on each client
B. resides only on the server in the network
C. provides Internet connectivity
D. serves as a connection point between computers.
E. routes and manages network traffic

Answer 1

E. routes and manages network traffic

Question 2

A communication processor used to direct packets of data through different networks is called a​ ________.

A. client
B. hub
C. switch
D. router
E. server

Answer 2

D. router

Question 3

The method of slicing digital messages into​ pieces, sending the pieces over different communication​ media, and then reassembling the pieces is called​ ________.

A. packet switching
B. client/server computing
C. switching
D. enterprise computing
E. routing

Answer 3

A. packet switching

Question 4

All the following are part of the Transmission Control​ Protocol/Internet Protocol Reference Model EXCEPT​ ________ layer.

A. Internet
B. transport
C. application
D. network interface
E. switching

Answer 4

E. switching

Question 5

A(n) ________ is a discrete binary waveform used for transmission of data.

A. sine wave
B. discrete signal
C. electric current
D. digital signal
E. analog signal

Answer 5

D. digital signal

Question 6

A network that spans a city is called​ a(n) ________.

A. peer-to-peer network
B. metropolitan area network
C. wide area network
D. local area network
E. city network

Answer 6

B. metropolitan area network

Question 7

The range of frequencies that can be accommodated on a telecommunications channel is called​ ________.

A. hertz
B. bandstand
C. compression factor
D. bandwidth
E. latency

Answer 7

D. bandwidth

Question 8

All the following are physical transmission media EXCEPT​ ________.

A. wireless transmission media
B. twisted pair
C. fiber-optic cable
D. coaxial cable
E. power lines

Answer 8

E. power lines

Question 9

________ operate over existing telephone lines to carry​ data, voice, and video.

A. Cable Internet connections
B. T1 connections
C. Satellite Internet connections
D. Ethernet connections
E. Digital subscriber line​ (DSL) technologies

Answer 9

E. Digital subscriber line​ (DSL) technologies

Question 10

​________ converts domain names to IP addresses.

A. A​ wide-area network
B. TCP protocol
C. IP protocol
D. The domain name system​ (DNS)
E. A local area network

Answer 10

D. The domain name system​ (DNS)

Question 11

A new version of IP​ addressing, which contains​ 128-bit addresses, is called​ ________.

A. IPv6
B. Internet2
C. IPv5
D. IP128
E. TCP/IP

Answer 11

A. IPv6

Question 12

All the following are major Internet services EXCEPT​ ________.

A. Web beacons
B. Telnet
C. FTP
D. email
E. IM

Answer 12

A. Web beacons

Question 13

​________ is the popular name for a networking standard useful for creating small​ personal-area networks.

A. Blacktooth
B. Voice-over IP​ (VOIP)
C. TCP/IP
D. Bluetooth
E. VPN

Answer 13

D. Bluetooth

Question 14

A new family of standards developed to deal with the fact that people in remote areas do not have access to​ Wi-Fi is called​ ________.

A. network operations
B. hotspot
C. wireless sensor networks
D. WiMax
E. 802.11

Answer 14

D. WiMax

Question 15

________ is very useful for inventory and supply chain management.

A. RFID
B. End-user survey
C. A sensor network
D. VPN analysis
E. Post-mortem analysis

Answer 15

A. RFID

Question 16

Networks of interconnected wireless devices that are embedded in the physical environment to provide measurements of many points over large spaces are called​ ________.

A. RFIDs
B. hotspots
C. WiMax
D. wireless sensor networks
E. 802.11

Answer 16

D. wireless sensor networks