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