Cisco 1 in class 103106 Module 4
Name : Period :
_______________ is literally and physically the backbone of a network.
Networking media requires _________________to ensure that it meets strict
specifications.
What is another term for signal deterioration as it relates to networking media ?
How is frequency measured ? ______________________________________________
Describe two ways that waves are measured ___________________________________
What is the unit of measure for the amplitude of an electrical signal ? ________________
The distance of the earth from the sun; the tides of a body of water; these things can
be represented graphically by _______________________________________________
Name four sources of noise _________________________________________________
How are digital signals represented graphically ? ________________________________
What are the two basic types of copper cable ? __________________________________
How is digital data represented when using fiber optic cable ? _____________________
Optical signals are unaffected by _____________________________________________
_____________________________cause attenuation because a portion of the transmitted
signal is ____________________________ and does not reach the receiver.
Describe the term jitter ___________________________________________________
Define and describe crosstalk _______________________________________________
A NIC transmits on ____________________ and receives on ______________________
What is propagation delay ? _________________________________________________
Undesirable signals in a communications system are called noise. Name three sources of
Noise. __________________________________________________________________
What is analog bandwidth ? _________________________________________________