VOICE DATA VIDEO VDV EXAMINATION SET 2025
QUESTIONS WITH SOLUTIONS RATED A+
✔✔what is Infrared Light transmission - ✔✔Transmitting data by the use of light. wave
pulses.
✔✔power lines are? - ✔✔a inexpensive and user friendly way to transmit data over
regular power cables.
✔✔what affects attenuation? - ✔✔distance (100 meters)
✔✔what type of transmission is used to eliminate cross-talk in in-shielded cables? -
✔✔Balanced transmission
✔✔Sctp - ✔✔optional cables for most networks
✔✔STP Cables - ✔✔IBM token ring
✔✔what type of transmissions are used for cross-talk in network closets? - ✔✔conduit
✔✔ladder - ✔✔wiring harness that is hung up the wall.
✔✔horizontal pull - ✔✔cables will be pulled from the wiring closet and the work area
above a suspended ceiling.
✔✔backbone - ✔✔Refers to the connections that carry most of the Internet's traffic.,
fiber optics mainly,...
✔✔How many cables can lay on a suspended ceiling ? - ✔✔3 wires for a 10 by 10 room
✔✔what's the most effective way to pull horizontal cables ? - ✔✔In Bundles
✔✔what are j hooks? - ✔✔a way to keep wire away from other hardware above
suspended ceilings
✔✔closet to closet pulls- - ✔✔use same technique as you do with horizontal pulls
✔✔conduit pulls- - ✔✔use mechanical pullers
✔✔overtightening cable ties can cause what? - ✔✔crosstalk
✔✔Installation Quality can affect what? - ✔✔signal; strength and signal quality
, ✔✔continuation - ✔✔n. prolongation; extension by which something is carried to a
further point, makes cable strength lower and higher.
✔✔what does capacitance filters out ? - ✔✔High Frequency's
✔✔topologies CATV uses cat 5 fibrotic and coaxial HFC - ✔✔
✔✔star topologies - ✔✔
✔✔old tele working wires 4 - ✔✔
✔✔ - ✔✔
✔✔pull old wiring and you replace it with cat5 - ✔✔
✔✔which signal will travel further? - ✔✔low frequency's
✔✔what is the two most important parts of signals ? - ✔✔signal strength and signal
quality
✔✔what factor or factors will influence signal quality? - ✔✔Installation is number1
✔✔should cable ties be tightened? - ✔✔no
✔✔plenum - ✔✔The overhead areas in offices through which air conditioning and
heating ducts run. (14)
✔✔riser - ✔✔type of Installation when running cables between floor's.
✔✔what are the guidelines not required but most used ? - ✔✔TIA 568
✔✔POWER LINE CARRIER NETWORK - ✔✔data carried a crossed normal power
lines.
✔✔what is the max distance a UTP cable can travel? - ✔✔100 meters 330feet
✔✔wire colors for CAT5 ? - ✔✔Blue, Orange, Green, Brown
✔✔signals that are reflected back it's called? - ✔✔Because of Improper Impedance
✔✔what is cross-talk ? - ✔✔Noise embedded into signal, noise that is picked up from
other things and is interfering with the signal.
QUESTIONS WITH SOLUTIONS RATED A+
✔✔what is Infrared Light transmission - ✔✔Transmitting data by the use of light. wave
pulses.
✔✔power lines are? - ✔✔a inexpensive and user friendly way to transmit data over
regular power cables.
✔✔what affects attenuation? - ✔✔distance (100 meters)
✔✔what type of transmission is used to eliminate cross-talk in in-shielded cables? -
✔✔Balanced transmission
✔✔Sctp - ✔✔optional cables for most networks
✔✔STP Cables - ✔✔IBM token ring
✔✔what type of transmissions are used for cross-talk in network closets? - ✔✔conduit
✔✔ladder - ✔✔wiring harness that is hung up the wall.
✔✔horizontal pull - ✔✔cables will be pulled from the wiring closet and the work area
above a suspended ceiling.
✔✔backbone - ✔✔Refers to the connections that carry most of the Internet's traffic.,
fiber optics mainly,...
✔✔How many cables can lay on a suspended ceiling ? - ✔✔3 wires for a 10 by 10 room
✔✔what's the most effective way to pull horizontal cables ? - ✔✔In Bundles
✔✔what are j hooks? - ✔✔a way to keep wire away from other hardware above
suspended ceilings
✔✔closet to closet pulls- - ✔✔use same technique as you do with horizontal pulls
✔✔conduit pulls- - ✔✔use mechanical pullers
✔✔overtightening cable ties can cause what? - ✔✔crosstalk
✔✔Installation Quality can affect what? - ✔✔signal; strength and signal quality
, ✔✔continuation - ✔✔n. prolongation; extension by which something is carried to a
further point, makes cable strength lower and higher.
✔✔what does capacitance filters out ? - ✔✔High Frequency's
✔✔topologies CATV uses cat 5 fibrotic and coaxial HFC - ✔✔
✔✔star topologies - ✔✔
✔✔old tele working wires 4 - ✔✔
✔✔ - ✔✔
✔✔pull old wiring and you replace it with cat5 - ✔✔
✔✔which signal will travel further? - ✔✔low frequency's
✔✔what is the two most important parts of signals ? - ✔✔signal strength and signal
quality
✔✔what factor or factors will influence signal quality? - ✔✔Installation is number1
✔✔should cable ties be tightened? - ✔✔no
✔✔plenum - ✔✔The overhead areas in offices through which air conditioning and
heating ducts run. (14)
✔✔riser - ✔✔type of Installation when running cables between floor's.
✔✔what are the guidelines not required but most used ? - ✔✔TIA 568
✔✔POWER LINE CARRIER NETWORK - ✔✔data carried a crossed normal power
lines.
✔✔what is the max distance a UTP cable can travel? - ✔✔100 meters 330feet
✔✔wire colors for CAT5 ? - ✔✔Blue, Orange, Green, Brown
✔✔signals that are reflected back it's called? - ✔✔Because of Improper Impedance
✔✔what is cross-talk ? - ✔✔Noise embedded into signal, noise that is picked up from
other things and is interfering with the signal.
