CH 3 insy
___________ refers to the spreading of the signal that different parts of the signal arrive at different times at the destination.
dispersion
_________ is the basic physical layout of the circuit.
circuit configuration
In general, networks designed to transmit primarily computer data are likely to be ________.
digital
Two fundamentally different types of data are
digital and analog
Which of the following media has the lowest error rates and the highest transmission speeds
fiber optic cable
Having a conversation with someone using a cellular phone is an example of _________ transmission
full-duplex
The two basic types of media are:
guided and wireless (radiated
The ability to transmit in both directions, but only in one direction at a time is an example of _______________ transmission.
half-duplex
Which of the following would be considered a type of wireless media?
microwave
__________ is a line-of-sight type of wireless media.
microwave
Data is physically transmitted from one computer or terminal to another in the ________ layer.
physical
Which is not true about point-to-point circuits?
point-to-point circuits reduce the amount
Which of the following is not an important factor to consider when selecting media to be used in a network?
prestige value of the type of media
A(n) __________ circuit is another name for a multipoint configuration
shared
The type of media usually installed on homes and businesses by the telephone company is called ____________.
twisted pair
_____________ can be thought of as dividing the circuit horizontally.
Frequency division multiplexing
Which of the following is not a key advantage of digital transmission?
It permits only low transmission rates
The earliest type of fiber optic systems were`
Multimode
______________ refers to the time it takes for a signal to travel from sender to recipient (highly exaggerated with satellite transmission).
Propagation delay
Another term for the weakening of a signal over distance is
attenuation
____________ refers to the transmission characteristics of the circuit.
logical circuit
Microwave transmission
all of the above
In general, older networks and local loops designed to transmit voice data are likely to be ________.
analog
Which of the following is the most secure wired media?
fiber optic cable
Which of the following media can best withstand harsh environmental conditions?
fiber optic cable
