Type your Name Here Chapter 9 Homework Questions

Type your Name Here
ITSC 1301 Introduction to Computers
Chapter 9 Homework Questions
True or False. Type in a "T" or "F" in the blank to the left of the question.
__ 1. Computer communications refers to the transfer of data, instructions, and information from one
computer to another.
__ 2. Communication channels include various transmission media, such as cables, telephone lines, and
radio waves.
__ 3. A dial-up line provides a permanent connection between the sending and receiving devices.
__ 4. DSL is much easier to install and has faster data transfer rates that ISDN.
__ 5. FTP (file transfer protocol) is an internet standard that allows you to upload and download files to
& from a web server.
__ 6. The telephone network uses digital technology with the exception of the final link.
__ 7. Fiber optic cable consists of one or more twisted wires, bundled together.
__ 8. The configuration or physical layout of the equipment in a communications network is called the
network topology.
__ 9. A multiplexing involves converting digital signals to analog signals.
__10. A coaxial cable can be cabled over longer distances than twisted-pair cable.
__11. A modem can be used as a stand-alone computer.
__12. Asynchronous transfer mode carries voice, data, video, and multimedia at extremely high speeds.
__13. If a computer fails to function in a Ring network, all other computers in that network will be
unaffected and continue to function normally.
__14. If the hub is inoperable in a Star network, the entire network in inoperable until the hub is fixed.
__15. TCP/IP is a set of protocols used to manage the transmission of data by breaking it up into
Multiple Choice. Type your choice for the most correct option in the blank on the left.
__16. _____________ signal transmissions are limited to line-of-sight transmissions.
Cellular radio
C. Satellite
D. Fiber-optic
__17. The __________ type of transmission media uses light to transmit signals over strands of glass or
A. coax
C. twisted-pair
B. fiber-optic
D. none of the above
_____________ involves using video and computer technology to allow participants to conduct a
meeting at two or more geographically separate locations..
A. Telecommuting
C. Groupware
B. Videoconferencing
D. Telephony
Most computers process data in the form of ___________ signals.
A. digital
C. Morse code
B. analog
D. microwave
An internal modem is actually a/an ______________.
A. box inside the computer
C. card inserted into a slot in the motherboard
B. chip inside the computer
D. demodulator
A client/server network, is a network in which one or more computers act as a _________.
A. server
C. user
B. bus
D. None of the above
__22. A wide area network uses ___________ as a means of communications channels.
A. telephone lines
C. cables
B. airwaves
D. all of the above
A __________ is a collection of computers, and other devices that use communications channels
to share resources.
A. system
C. network
B. hardware resource sharing
D. topology
__24. A _________ line uses a regular telephone line to establish a communications connection.
A. leased
C. dial-up
B. bus
D. private
__25. A communications satellite has a transfer rate of ________
A. 1 to 4 Mbps
C. up to 2 Mbps
B. 50 Mbps
D. 45 Mbps