MIS 3317 Chapter 10

43) Decent data transmission for Web surfing began with ________ technology. A) 1G B) 2G C) 3G D) 4G

C) 3G

49) To use a leased line, the customer must have a(n) ________ at each site. A) compatible switch B) compatible router C) CSU/DSU D) modem

C) CSU/DSU

38) An MTSO ________. A) controls cellsites in a cellular system B) links mobile users to wired telephone customers C) both A and B D) neither A nor B

C) both A and B

51) T1 leased lines run at a speed of about ________. A) 250 kbps B) 1 Mbps C) 10 Mbps D) 45 Mbps

B) 1 Mbps

79) Traffic shaping reduces traffic by ________. A) preventing certain undesirable traffic from entering the network B) limiting the amount of certain undesirable traffic entering the network C) both A and B D) neither A nor B

C) both A and B

10) WANs include ________. A) single networks B) the Internet C) either A or B D) neither A nor B

C) either A or B

9) LANs are ________. A) single networks B) local internets C) either A or B D) neither A nor B

C) either A or B

66) Which spends less processing time on each packet arriving at a router? A) traditional routing B) MPLS C) Both spend about equal time.

B) MPLS

73) Which of the following is the most expensive to use? A) Traditional routing B) MPLS C) carrier Ethernet D) the Internet

B) MPLS

2) Which of the following receive rights of way for transmission beyond sites? A) corporations B) carriers C) both A and B D) neither A nor B

B) carriers

54) Many T1 lines are ________. A) optical fiber lines B) Asymmetric DSL lines C) Symmetric DSL lines D) none of the above

C) Symmetric DSL lines

20) DSL offers ________. A) voice transmission B) data transmission C) both A and B D) neither A nor B

C) both A and B

25) In ADSL, the customer should have ________. A) splitters B) an ADSL modem C) both A and B D) neither A nor B

C) both A and B

18) Most end-office switches are Class ________ switches. A) 1 B) 2 C) 4 D) 5

D) 5

55) Many lines sold as T1 lines actually use ________. A) 1-pair voice-grade UTP B) 1-pair data-grade UTP C) 2-pair data-grade UTP D) optical fiber

A) 1-pair voice-grade UTP

59) In Carrier Ethernet, which service is a competitor for leased line service? A) E-Line B) E-LAN C) both A and B D) neither A nor B

A) E-Line

1) A network that runs on the customer premises is a ________. A) LAN B) WAN C) both A and B D) neither A nor B

A) LAN

4) A company has more control over its ________ technology. A) LAN B) WAN C) It has about equal control over both.

A) LAN

5) Which of the following usually offers higher speeds? A) LANs B) WANs C) Both A and B are about equal in typical speeds.

A) LANs

50) A customer's leased line to its ISP connects to the ISP's ________. A) POP B) terminal point C) CSU/DSU D) interface

A) POP

52) If you need speeds of 1.2 Mbps between two corporate sites in the United States, you would need a ________ leased line. A) T1 B) T3 C) OC3 D) none of the above

A) T1

27) For ADSL service, which of the following typically must be added to the telephone system? A) a DSLAM B) a transmission line to the customer premises C) both A and B

A) a DSLAM

39) If a cellsite uses Channel 237, which other cellsites can reuse the channel? A) adjacent cellsites B) cellsites one beyond adjacent cells C) cellsites two beyond adjacent cells D) no other cellsites

A) adjacent cellsites

75) WAN optimization devices are deployed ________. A) at the ends of leased lines B) by the telephone carrier C) by the MPLS carrier D) by the ISP

A) at the ends of leased lines

33) For cable modem service, customers need ________. A) cable modems B) splitters C) both A and B D) neither A nor B

A) cable modems

36) In cellular technology, a ________ is a small geographical area. A) cell B) cellsite C) both A and B D) neither A nor B

A) cell

) Leased lines offer ________ service. A) fast B) any-to-any C) both A and B D) neither A nor B

A) fast

34) Compared to ADSL service, cable modem traditionally has been ________. A) faster and more expensive B) faster and less expensive C) slower and more expensive D) slower and less expensive

A) faster and more expensive

28) The promise of FTTH is ________. A) higher speed B) lower cost C) both A and B D) neither A nor B

A) higher speed

48) Which lines run from one customer premise to another? A) leased lines B) access lines C) both A and B D) neither A nor B

A) leased lines

3) A WAN is the network that ________. A) links different sites together B) provides service within about a mile C) provides service within a site D) all of the above

A) links different sites together

14) Compared to the Internet, carrier WANs ________. A) offer higher-quality service B) can reach more customers C) both A and B D) neither A nor B

A) offer higher-quality service

67) MPLS ________ the work that each router must do to deliver a packet during a traffic exchange. A) reduces B) increases C) does not affect D) occasionally reduces

A) reduces

77) Compression reduces traffic by ________. A) reducing redundancy in the data B) preventing undesirable traffic from entering the network C) both A and B D) neither A nor B

A) reducing redundancy in the data

40) Cells are used in cellular telephony to provide ________. A) service for more customers B) greater reliability C) greater transmission speed D) all of the above

A) service for more customers

22) Asymmetric residential service is good for ________. A) the World Wide Web B) videoconferencing C) both A and B D) neither A nor B

A) the World Wide Web

71) MPLS is ________ the source and destination hosts. A) transparent to B) nontransparent to C) apparent to D) a burden on

A) transparent to

61) Why is Carrier Ethernet popular? A) uses a familiar technology B) offers predictable pricing over multi-year periods C) both A and B D) neither A nor B

A) uses a familiar technology

24) Which of the following already runs to nearly all customer premises? A) 4-pair UTP B) 1-pair VG UTP C) 1-pair DG UTP D) 2-pair DG UTP

B) 1-pair VG UTP

26) In ADSL, the residential customer needs a(n) ________. A) DSLAM B) ADSL modem C) both A and B D) neither A nor B

B) ADSL modem

53) If you need speeds of 16 Mbps between two corporate sites in the United States, you would need a ________ leased line. A) T1 B) T3 C) OC3 D) none of the above

B) T3

16) How do WAN carriers typically get their trunk lines? A) They construct them. B) They lease them from telephone companies. C) They use wireless transmission. D) They use the Internet.

B) They lease them from telephone companies.

11) The Internet is a ________. A) LAN B) WAN C) both A and B D) neither A nor B

B) WAN

7) Which of the following has more diversity in technologies? A) LANs B) WANs C) Both A and B are about equal in diversity of technologies.

B) WANs

21) DSL residential service provides ________. A) symmetric speed B) asymmetric speed C) both A and B D) neither A nor B

B) asymmetric speed

74) Firms generally pay the added cost of MPLS for connecting their sites ________. A) because it has higher transmission speeds B) because it can do traffic engineering C) because it uses familiar technology D) all of the above

B) because it can do traffic engineering

64) In MPLS, the router interface to send the packet back out will be decided ________. A) during the router's routing process B) before the first data packet is sent C) by a dynamic routing protocol D) none of the above

B) before the first data packet is sent

56) Which of the following DSL services tends to be symmetric in speed? A) residential B) business C) both A and B D) neither A nor B

B) business

78) Which reduces traffic more when sending long files? A) compression B) caching C) both A and B D) neither A nor B

B) caching

37) In cellular technology, the carrier antenna and equipment to which mobile customers connect directly is called a(n) ________. A) cell B) cellsite C) MTSO D) wireline carrier

B) cellsite

12) Which of the following does the carrier NOT own? A) the network core B) customer premises equipment C) both A and B D) neither A nor B

B) customer premises equipment

32) Two-way amplifiers are needed for cable ________ service. A) television B) data C) both A and B D) neither A nor B

B) data

68) In MPLS, the ________ adds the label to the packet. A) source host B) first label-switching router C) either A or B D) neither A nor B

B) first label-switching route

70) MPLS routers base their decisions on a packet's ________. A) destination IP address B) label number C) both A and B D) neither A nor B

B) label number

80) Traffic shaping reduces traffic by ________. A) compression B) preventing or limiting undesirable traffic from entering the network C) both A and B

B) preventing or limiting undesirable traffic from entering the network

15) Which of the following allows you to connect to the hosts of almost any corporation today? A) carrier WANs B) the Internet C) both A and B

B) the Internet

72) MPLS brings ________. A) lower cost than the Internet B) the ability to do traffic engineering C) both A and B D) neither A nor B

B) the ability to do traffic engineering

44) Which generation is now bringing speeds of about 10 Mbps? A) 2G B) 3G C) 4G D) 5G

C) 4G

13) Which of the following is a common use for carrier WANs? A) to connect corporate sites B) to connect a corporate site to the Internet C) both A and B D) neither A nor B

C) both A and B

29) Fiber to the home service is normally offered by ________. A) cable television companies B) telephone companies C) both A and B D) neither A nor B

C) both A and B

35) Which of the following is moving toward FTTH? A) cable modem service companies B) ADSL service companies C) both A and B D) neither A nor B

C) both A and B

41) Which of the following affects what cellular throughput an individual user will receive? A) being in a moving car B) being far from the cellsite C) both A and B D) neither A nor B

C) both A and B

45) 5G will bring ________. A) higher speeds than 4G B) energy-efficient low speeds C) both A and B D) neither A nor B

C) both A and B

57) Compared to the Internet, Layer 2 and Layer 3 carrier WAN services usually ________. A) offer QoS guarantees B) require less management labor in the customer organization C) both A and B D) neither A nor B

C) both A and B

58) How does carrier Ethernet differ from traditional Ethernet? A) It is offered by carriers instead of being installed and managed by the company using it. B) It is for MAN and WAN services. C) both A and B D) neither A nor B

C) both A and B

62) Why is Carrier Ethernet popular? A) It uses familiar technology. B) It has attractive prices. C) both A and B D) neither A nor B

C) both A and B

63) Why is Carrier Ethernet popular? A) It uses a familiar technology. B) It is usually easy to upgrade speed rapidly. C) both A and B D) neither A nor B

C) both A and B

76) Which of the following reduces traffic? A) compression B) traffic shaping C) both A and B D) neither A nor B

C) both A and B

81) Which of the following can sometimes be accelerated by changing their operation? A) Application protocols B) Network protocols C) both A and B D) neither A nor B

C) both A and B

30) For their transmission medium, cable television companies primarily use ________. A) 2-pair VG UTP cabling B) 2-pair DG UTP cabling C) coaxial cable D) 4-pair UTP

C) coaxial cable

65) In MPLS, if two packets arrive in order going to the same IP address, MPLS will ________. A) send the second on doing a simple cache lookup B) go through the entire routing process for the second packet C) do a simple table lookup for the second packet D) none of the above

C) do a simple table lookup for the second packet

19) The PSTN core is organized as a ________. A) mesh B) hierarchy C) modified hierarchy D) loop

C) modified hierarchy

23) What transmission medium do ALL DSL services use? A) one-pair data-grade UTP B) two-pair data-grade UTP C) one-pair voice-grade UTP D) none of the above

C) one-pair voice-grade UTP

6) LAN speeds are faster than WAN speeds because of ________. A) technological limitations B) regulatory limitations C) slow corporate adoption of newer WAN technologies D) economic reasons

D) economic reasons

8) MAN speeds are faster than WAN speeds because of ________. A) technological limitations B) regulatory limitations C) slow corporate adoption of newer WAN technologies D) economic reasons

D) economic reasons

42) In cellular technology, G stands for ________. A) goodness B) grade C) ground wave D) generation

D) generation

31) In coaxial cable, the two conductors ________. A) run side-by-side B) are twisted around each other C) both A and B D) neither A nor B

D) neither A nor B

60) In Carrier Ethernet, which connects multiple distant sites into a single Ethernet network? A) E-Line service B) E-LAN service C) both A and B D) neither A nor B

D) neither A nor B

17) In a telephone system, the lines that connect customers to the nearest switch are called ________. A) trunk lines B) local lines C) the access loop D) the local loop

D) the local loop

When carriers use the terms "4G" and "5G," they use these terms in ways that comply with standards.

FALSE

69) In MPLS, the label-switched routers in the middle do not look at a packet's IP address.

TRUE