ch10short

question

At the top of the Internet structure are national ___________, such as AT&T and Sprint.
answer

Internet service providers
question

National ISPs connect together and exchange data at ___________.
answer

Network Access Points
question

_________ are smaller versions of NAPs that link a set of regional ISPs.
answer

metropolitan area exchanges
question

__________ has led to the belief that the Internet is “free”.
answer

Peering
question

___________ refers to the fact that ISPs do not charge one another (at the same level) for transferring messages they exchange across an NAP or MAE.
answer

Peering
question

A _________ is the place at which the ISP provides services to its customers.
answer

point-of-presence
question

In general, local ISPs make money by charging ________.
answer

customers
question

A ___________ is used by ISPs to authenticate its customers.
answer

remote-access server.
question

Which of the following is one of the national ISPs in North America?
answer

Sprint
question

Technologies that provide higher-speed communications than traditional modems (e.g., DSL) are known as ______________ technologies.
answer

broadband
question

Digital _________ Line is a family of point-to-point technologies designed to provide high-speed data transmission over traditional telephone lines.
answer

Subscriber
question

For access to DSL, __________ equipment is installed at the customer location.
answer

customer premises
question

A __________ separates traditional voice telephone transmission from the data transmissions in the equipment located at the customer site for DSL.
answer

line splitter
question

Data traffic from the customers premises is sent to a __________ which is located at the local carrier’s end office.
answer

DSLAM
question

The _________ is the connection from a home or business to the telephone company end office.
answer

local loop
question

A DSL modem is also known as a _________.
answer

DSL router
question

At the DSL local carrier’s office, the __________ demultiplexes the data streams and converts them into ATM data.
answer

DSLAM
question

Asymmetric DSL uses ___________ multiplexing to create three separate channels over one local loop circuit.
answer

frequency division
question

To balance the trade-off between speed and distance in ADSL, most ADSL service providers have chosen a T1 level of ADSL, and offer it under the trademarked name of _________ ADSL.
answer

G.Lite
question

Very-high-data-rate DSL uses multiplexing to provide _________ channels.
answer

three
question

A digital service offered by cable companies is the _________.
answer

cable modem
question

Another term for cable networks that use both fiber-optic and coaxial cable is __________.
answer

hybrid fiber coax
question

A T1 level of ADSL has a maximum downstream rate of about _________ Mbps.
answer

1.5
question

A headend is also referred to as a:
answer

distribution hub
question

Wireless DSL requires __________ to be effective.
answer

tall buildings or towers
question

A(n) __________ is used to connect a fiber optic cable from the cable TV company side to a coaxial cable on the customer side.
answer

optical-electrical converter
question

A(n) ___________ contains a series of cable modems/multiplexers and converts the data from cable modem protocols into protocols needed for Internet traffic, before passing them to a router connected to an ISP POP.
answer

cable modem termination system
question

The multipoint version of fixed wireless is sometimes known as ____________.
answer

point-to-multipoint
question

___________ is designed to enable the use of normal Web applications on computers and devices with small display screen operating over low speed wireless connections.
answer

Wireless Application Protocol
question

A transceiver at the WAP gateway passes requests to a __________ server from a handheld device.
answer

wireless telephony application
question

A ____________ translates a wireless application request to HTTP and sends it over the Internet to the desired Web server.
answer

WAP proxy
question

Running fiber optic cable into the home as an alternative networking technology to DSL is called _____________
answer

passive optical networking
question

In passive optical networking, the optical signal has a maximum length of about __________.
answer

10 miles
question

_________ is being pioneered by Yipes.com.
answer

Ethernet to the home
question

One advantage of _____________ is that no conversations between LAN and WAN protocols are needed.
answer

ethernet to the home
question

The closest the Internet has to an “owning” organization is the ___________.
answer

Internet Society
question

The ________ is a large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and smooth operation of the Internet.
answer

Internet Engineering Task Force
question

The ___________ is responsible for technical management of IETF and the Internet standards process.
answer

Internet Engineering Steering Committee
question

The _________operates like the IETF through small research groups focused on specific issues.
answer

Internet Research Task Force
question

In 1996, The National Science foundation provided $100 million to start the ___________ program to develop the very-high-performance Backbone Network Service.
answer

Next Generation Internet
question

Internet 2 is also known as ________.
answer

the Abilene network
question

Another major high-speed network experimenting with long distance Ethernet over fiber is _____________.
answer

the National Lambda Rail
question

A high-speed Internet has a set of access points called ____pops that provide point-of-presence at ________ speeds.
answer

giga, gigabit

Get instant access to
all materials

Become a Member