Questions – Network Hardware Dr John Cowell phones off (please)

Q 1 Which of these statements about ADSL is NOT correct? a) ADSL stands for Asymmetric Digital Subscriber Line. b) ADSL is full duplex. c) Data transfer rates are much faster in one direction than another. d) ADSL modems use frequencies between 2 and 8MHz e) A DSL modem can only connect a single computer to a DSL. CSCI1412-HW-42

Q2 Which of these statements about Satellite networks is correct? a) The entire surface of the earth could be reached by 5 satellites (if the Earth was a perfect sphere) b) A geo-stationary orbit occurs at 12,000 miles. c) The US GPS system uses 24 satellites. d) The accuracy of the US GPS system is within 2m. e) The Galileo GPS system is being developed by Russia. CSCI1412-HW-43

Q3 You have to connect two LANS which use the same protocol. What type of hardware would you use to do this? a) A bridge. b) A digital switch c) A hub. d) A Multiplexer e) A server CSCI1412-HW-44

Q4 You want to send two signals at the same time over the same physical line. What hardware do you need? a) A modem. b) A multiplexer. c) A router. d) A NIC. e) A switch. CSCI1412-HW-45

Answers Q1 – D Q2 – C Q3 – A Q4 – B CSCI1412-HW-46