Networks Flashcards
1
Q
What is baud rate?
A
Number of signal changes per second
2
Q
Explain CSMA/CA with RTS/CTS
A
Check if channel is idle if it is, send RTS, if not wait random amount of time and try again
If no CTS, wait until channel is idle and send another RTS
If CTS, send data and wait for confirmation
3
Q
What is a Vernam cipher and how is it used?
A
One time pad, unbreakable, key XORed with plaintext. Key must be length of message
4
Q
What is run-length encoding
A
Strings of the same character or bit are represented as the bit and the length of the string
