IT 105 GMU Final Exam Questions With
Correct Answers
A basic computer network can be described as: - answer✔✔Two or more computers that are
linked together
LAN stands for: - answer✔✔local area network
The primary difference between a LAN and a WAN is: - answer✔✔distance
Each individual computer and component attached to a network is a: - answer✔✔Node
In a traditional LAN, each node on the network is connected through: - answer✔✔Cables
MAN stands for: - answer✔✔Metropolitan area network
The hardware device or software program that sends messages between networks is known as a:
- answer✔✔Router
NIC stands for: - answer✔✔Network Interface Card
Computer bits must be ___________ to travel over phone lines - answer✔✔Analog signals
Modem speed is measured in: - answer✔✔Bits per second
What is the term for the amount of information transmitted through a communication medium in
a certain amount of time? - answer✔✔Bandwidth
What type of cable uses light waves to carry information at high speed? - answer✔✔Fiber-optic
cables
What helps block unauthorized access and data transfer? - answer✔✔A firewall
A program that performs a useful task while simultaneously allowing destructive acts is a: -
answer✔✔Trojan horse
An intentionally disruptive program that spreads from program to program or from disk to disk is
known as a: - answer✔✔Virus
What type of virus uses computer hosts to reproduce itself? - answer✔✔Worm
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