Chapter 4- Computer Tech. 1030

Which is a faster networking cable?

100BaseT

Normal speeds of a cable modem are approximately:

1Mbps

DSL speeds range from:

256 Kbps to 1.5 Mbps

Standard voice-grade lines are designed to carry frequencies in the range of:

300 to 3300Hz.

Which of the following standards is used in wireless networking?

802.11

Which of the following is the most commonly used twisted pair cable category?

Cat 5

DSL is a combination of what two types of multiplexing?

FDM and TDM

A hub has a single input and a single output.

False

Which type of guided medium is the least susceptible to attenuation and inductance?

Fiber-optic cable

Which of the following is used to connect a computer to a network?

NIC

Which of the OSI layers is involved with a network's electrical specifications?

Physical

Which of the OSI layers is responsible for guaranteed delivery of data?

Transport

Modems convert binary digits into sounds by modulating tones.

True

Which of the following is not one of the OSI model layers?

Wireless

What factor reduces the strength of an electrical signal as it travels along a transmission medium?

attenuation

Fiber-optic cable is made of:

glass

Which is a better signal-to-noise ratio?

high

Which of the following is not a network device?

ramp

Which of the following is a LAN topology?

star

Which topology has become more popular with the advent of the Internet and home networking?

star