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5 cards from this section. Quick, good the night before a test.
What does the word modem stand for, and what does a modem do?
Split the word into its two halves.
What is a MAC address? State its length and how it is usually written.
Every network card carries one from the factory.
Which device forwards a frame only to the port of the destination computer?
It learns where every computer is connected.
Which device connects a home network to the internet and forwards packets using IP addresses?
It finds the route.
A school is setting up a computer lab with 30 desktop computers in one room. Students must reach the internet, and teachers want to connect their laptops by Wi-Fi. List the communication devices needed and explain where each one fits.
Trace the path from one computer to the internet and name the device at each step.
Write a Java program that prints, in minutes and seconds, how long three files take to download at 40 Mbps: a 300 MB video lecture, a 750 MB game update and 45 MB of PDF notes. Use integer arithmetic.
Use / 60 for whole minutes and % 60 for the seconds left over.
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