AND ANSWERS GRADED A+
✔✔logical circuit - ✔✔____________ refers to the transmission characteristics of the
circuit.
- handshaking
- virtual circuit
- bonding
- logical circuit
- physical circuit
✔✔Digital and analog - ✔✔Two fundamentally different types of data are:
- DSL and ADSL
- Asymmetric and symmetric
- Microsoft and IBM
- Digital and analog
- Local area and wide area
✔✔digital - ✔✔In general, networks designed to transmit primarily computer data are
likely to be ________.
- international
- level 1
- numeric
- analog
- digital
✔✔analog - ✔✔In general, older networks and local loops designed to transmit voice
data are likely to be ________.
- international
- level 2
- numeric
- digital
- analog
✔✔It permits only low transmission rates. - ✔✔Which of the following is not a key
advantage of digital transmission?
- It permits only low transmission rates.
- It is more efficient.
- It is simpler to integrate voice, video, and data on the same circuit.
- It is more secure.
- It produces fewer errors.
✔✔circuit configuration - ✔✔_________ is the basic physical layout of the circuit.
- point-to-point
- configuration
,- configuration
- circuit configuration
- circuit design
- circuit plan
✔✔shared - ✔✔A(n) __________ circuit is another name for a multipoint configuration.
- analog
- dedicated
- point-to-point
- shared
- simplex
✔✔point-to-point circuits reduce the amount of cable required and use the circuit more
efficiently than multipoint circuits. - ✔✔Which is not true about point-to-point circuits?
- point-to-point circuits are dedicated to the use of the two computers.
- point-to-point circuits are more expensive than multipoint circuits.
- point-to-point circuits are called dedicated circuits.
- point-to-point circuits reduce the amount of cable required and use the circuit more
efficiently than multipoint circuits.
- point-to-point circuits are used when the computers generate enough traffic to fill the
capacity of the communication circuit.
✔✔full-duplex - ✔✔Having a conversation with someone using a cellular phone is an
example of _________ transmission.
- simplex
- full-duplex
- half-duplex
- analog
- digital
✔✔half-duplex - ✔✔The ability to transmit in both directions, but only in one direction at
a time is an example of _______________ transmission.
- simplex
- full-duplex
- half-duplex
- analog
- digital
✔✔guided and wireless (radiated) - ✔✔The two basic types of media are:
- statistical and frequency
- guided and wireless (radiated)
- local and wide area
- attenuator and Gaussian
- duplexed and non-duplexed
, ✔✔microwave - ✔✔Which of the following would be considered a type of wireless
media?
- unshielded twisted pair
- shielded twisted pair
- coaxial cable
- microwave
- fiber optics
✔✔twisted pair - ✔✔The type of media usually installed on homes and businesses by
the telephone company is called ____________.
- fiber optic cable
- coaxial cable
- twisted pair
- phone cable
- phone wire
✔✔Multimode - ✔✔The earliest type of fiber optic systems were:
- Graded index multimode
- Attenuated
- Multimode
- Single mode
- Step mode
✔✔attenuation - ✔✔Another term for the weakening of a signal over distance is:
- turnaround time
- propagation delay
- dispersion
- insulation
- attenuation
✔✔dispersion - ✔✔___________ refers to the spreading of the signal that different
parts of the signal arrive at different times at the destination.
- turnaround time
- propagation delay
- dispersion
- insulation
- attenuation
✔✔fiber optic cable - ✔✔Which of the following media can best withstand harsh
environmental conditions?
- shielded twisted pair
- unshielded twisted pair
- cat 5 twisted pair
- coaxial cable
- fiber optic cable