$20.\_\_$c$\_\_$ oversees research related to the Internet.

a$.$ World Wide Web Consortium $($W$3$C$)$

b$.$ ARPANET

c$.$ NSFnet

d$.$ NASA

$21.$ Fixed wireless Internet connections $\_\_\_\_.$

a$.$ all of the above

b$.$ use an antenna to communicate with a tower

c$.$ are high$-$speed

d$.$ use radio signals

$22.$ Although it is an inexpensive way for users to connect to the Internet, $\_\_\_\_$ is slower$-$speed technology.

a$.$ a dial$-$up connection

b$.$ a cable modem

c$.$ DSL

d$.$ ISDN

$23.$ Until $1995,$ NSFnet handled the bulk of communications activity, or $\_\_\_\_,$ on the Internet.

a$.$ traffic

b$.$ volume

c$.$ modulation

d$.$ access

$24.\_\_\_\_$ takes place when the modem in a computer uses a standard telephone line to connect to the Internet.

a$.$ Dial$-$up access

b$.$ DSL

c$.$ Convergence

d$.$ FTTP

$25.$ A cable $\_\_\_\_$ allows access to high$-$speed Internet services through the cable television network.

a$.$ modem

b$.$ transceiver

c$.$ receiver

d$.$ dialer

$26.\_\_\_\_$ high$-$speed Internet connections use an antenna on a house or business to communicate with a tower location via radio signals.

a$.$ Fixed wireless

b$.$ Satellite

c$.$ FTTP

d$.$ DSL

$27.$ A satellite $\_\_\_\_$ communicates with a satellite dish to provide high$-$speed Internet connections via satellite.

a$.$ modem

b$.$ transceiver

c$.$ receiver

d$.$ dialer

$28.$ Which of the following is NOT true of a Wi$-$Fi network?

a$.$ A Wi$-$Fi's Internet service can be dial$-$up access.

b$.$ Many home users set them up$.$

c$.$ Wi$-$Fi networks send signals to a communications device that is connected to a high$-$speed Internet service.

d$.$ A Wi$-$Fi's Internet service can be DSL or cable.

$29.$ A satellite Internet service $\_\_\_\_.$

a$.$ is a high$-$speed Internet connection

b$.$ uses regular copper telephone lines

c$.$ accesses the Internet through the cable television network

d$.$ uses radio signals to communicate with a tower

$30.\_\_\_\_$ sets standards and guidelines for many areas of the Internet.

a$.$ The W$3$C

b$.$ The NSF

c$.$ ARPA

d$.$ DARPA