ISTM 310 FINAL EXAM 2026 ACTUAL QUESTIONS AND
ANSWERS GRADED A+
✔✔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
✔✔microwave - ✔✔__________ is a line-of-sight type of wireless media.
- coaxial cable
- microwave
- radio
- twisted pair
- fiber optic
✔✔Frequency division multiplexing - ✔✔_____________ can be thought of as dividing
the circuit horizontally.
- Frequency division multiplexing
- Statistical frequency division multiplexing
- Statistical time division multiplexing
- Time division multiplexing
- Wavelength division multiplexing
✔✔all of the above - ✔✔Microwave transmission:
- is a type of high frequency radio communication
- requires a clear line-of-sight path
- is typically used for long distance data transmission
- does not require the laying of any cable
- all of the above
✔✔Propagation delay - ✔✔______________ refers to the time it takes for a signal to
travel from sender to recipient (highly exaggerated with satellite transmission).
- Line-of-sight effect
- Multimode index
, - Saturation effect
- Raindrop attenuation
- Propagation delay
✔✔prestige value of the type of media - ✔✔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
- type of network
- cost
- transmission distance
- security
✔✔fiber optic cable - ✔✔Which of the following is the most secure wired media?
- coaxial cable
- unshielded twisted pair
- shielded twisted pair
- fiber optic cable
- infrared
✔✔fiber optic cable - ✔✔Which of the following media has the lowest error rates and the
highest transmission speeds?
- coaxial cable
- unshielded twisted pair
- shielded twisted pair
- fiber optic cable
- infrared
✔✔differ widely among media - ✔✔Transmission speeds:
- are the same among all media
- are not a factor in selecting a media because all media have more than enough speed
to serve current communication demands
- are a constant, 56Kbps, for all media types
- differ widely among media
- always have a direct correlation with security
✔✔1024 - ✔✔A coding scheme that uses 10 bits to represent each character is capable
of representing _________ different characters.
- 256
- 20
- 200
- 512
- 1024
✔✔ASCII - ✔✔____________ is one of the most commonly used coding schemes used
in data transmission.
- ASCII
ANSWERS GRADED A+
✔✔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
✔✔microwave - ✔✔__________ is a line-of-sight type of wireless media.
- coaxial cable
- microwave
- radio
- twisted pair
- fiber optic
✔✔Frequency division multiplexing - ✔✔_____________ can be thought of as dividing
the circuit horizontally.
- Frequency division multiplexing
- Statistical frequency division multiplexing
- Statistical time division multiplexing
- Time division multiplexing
- Wavelength division multiplexing
✔✔all of the above - ✔✔Microwave transmission:
- is a type of high frequency radio communication
- requires a clear line-of-sight path
- is typically used for long distance data transmission
- does not require the laying of any cable
- all of the above
✔✔Propagation delay - ✔✔______________ refers to the time it takes for a signal to
travel from sender to recipient (highly exaggerated with satellite transmission).
- Line-of-sight effect
- Multimode index
, - Saturation effect
- Raindrop attenuation
- Propagation delay
✔✔prestige value of the type of media - ✔✔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
- type of network
- cost
- transmission distance
- security
✔✔fiber optic cable - ✔✔Which of the following is the most secure wired media?
- coaxial cable
- unshielded twisted pair
- shielded twisted pair
- fiber optic cable
- infrared
✔✔fiber optic cable - ✔✔Which of the following media has the lowest error rates and the
highest transmission speeds?
- coaxial cable
- unshielded twisted pair
- shielded twisted pair
- fiber optic cable
- infrared
✔✔differ widely among media - ✔✔Transmission speeds:
- are the same among all media
- are not a factor in selecting a media because all media have more than enough speed
to serve current communication demands
- are a constant, 56Kbps, for all media types
- differ widely among media
- always have a direct correlation with security
✔✔1024 - ✔✔A coding scheme that uses 10 bits to represent each character is capable
of representing _________ different characters.
- 256
- 20
- 200
- 512
- 1024
✔✔ASCII - ✔✔____________ is one of the most commonly used coding schemes used
in data transmission.
- ASCII
