Chapter 10 (Part 1) Carrier Wide Area Networks (WANs)

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An MTSO ________.

both A and B (controls cellsites in a cellular system & links mobile users to wired telephone customers)

In ADSL, the customer should have ________.

both A and B (splitters, an ADSL modem)

In cellular technology, a ________ is a small geographical area.

cell

In coaxial cable, the two conductors ________.

neither A nor B (run side-by-side, are twisted around each other)

Most end-office switches are Class ________ switches.

5

In ADSL, the residential customer needs a(n) ________.

ADSL modem

A company has more control over its ________ technology.

LAN

Which of the following has more diversity in technologies?

WANs

For ADSL service, which of the following typically must be added to the telephone system?

a DSLAM

If a cellsite uses Channel 237, which other cellsites can reuse the channel?

adjacent cellsites

A network that runs on the customer premises is a ________.

LAN

Which of the following usually offers higher speeds?

LANs

How do WAN carriers typically get their trunk lines?

They lease them from telephone companies.

The Internet is a ________.

WAN

DSL residential service provides ________.

asymmetric speed

Fiber to the home service is normally offered by ________.

both A and B (cable television companies & telephone companies)

Which of the following is a common use for carrier WANs?

both A and B (to connect corporate sites, to connect a corporate site to the Internet)

DSL offers ________.

both A and B (voice transmission & data transmission)

For cable modem service, customers need ________.

cable modems

Which of the following receive rights of way for transmission beyond sites?

carriers

In cellular technology, the carrier antenna and equipment to which mobile customers connect directly is called a(n) ________.

cellsite

For their transmission medium, cable television companies primarily use ________.

coaxial cable

hich of the following does the carrier NOT own?

customer premises equipment

Two-way amplifiers are needed for cable ________ service.

data

Compared to the Internet, carrier WANs ________.

offer higher-quality service

What transmission medium do ALL DSL services use?

one-pair voice-grade UTP

Cells are used in cellular telephony to provide ________.

service for more customers

Which of the following allows you to connect to the hosts of almost any corporation today?

the Internet

Asymmetric residential service is good for ________.

the World Wide Web

In a telephone system, the lines that connect customers to the nearest switch are called ________.

the local loop

Which of the following already runs to nearly all customer premises?

1-pair VG UTP

Which of the following is moving toward FTTH?

both A and B (cable modem service companies & ADSL service companies)

Which of the following affects what cellular throughput an individual user will receive?

both A and B (being in a moving car & being far from the cellsite)

LAN speeds are faster than WAN speeds because of ________.

economic reasons

MAN speeds are faster than WAN speeds because of ________.

economic reasons

LANs are ________.

either A or B (single networks, local internets)

WANs include ________.

either A or B (single networks, the Internet)

Compared to ADSL service, cable modem traditionally has been ________.

faster and more expensive

In cellular technology, G stands for ________.

generation

The promise of FTTH is ________.

higher speed

A WAN is the network that ________.

links different sites together

The PSTN core is organized as a ________.

modified hierarchy


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