Voice-Data-Video (VDV)General Knowledge Comprehensive Questions with Approved Answers Guaranteed Full Score 100% Download!!!
3 views 0 purchase
Course
VDV
Institution
VDV
Voice-Data-Video (VDV)General
Knowledge Comprehensive Questions
with Approved Answers Guaranteed
Full Score 100% Download!!!
__________ and __________ are required for terminating wire pairs and support cross-connect wiring
and patch cords in a 110 block. - Answer -Connecting blocks, wiring bl...
Voice-Data-Video (VDV)General
Knowledge Comprehensive Questions
with Approved Answers Guaranteed
Full Score 100% Download!!!
__________ and __________ are required for terminating wire pairs and support cross-connect wiring
and patch cords in a 110 block. - Answer -Connecting blocks, wiring blocks
__________ and __________ are the two types of delay measured in a cable test. - Answer -
Propagation delay, delay skew
__________ and __________ optical fiber cables are permitted to be installed in listed plenum raceways.
- Answer -OFCP, OFNP
__________ are devices that restrict the level of audio signals. - Answer -Limiters
__________ are needed to connect phones to VOIP. - Answer -Two conductors
__________ are the best for measuring signal loss in an optical fiber cable. - Answer -Optical loss
test sets
__________ are used in communications systems to ensure continued operation of critical circuits during
a specified time under fire conditions. - Answer -Circuit integrity cables
__________ cable is used for serial communication, with a maximum run distance of __________ -
Answer -RS232, 50 feet
__________ cables are susceptible to electrical noise. - Answer -Unshielded Twisted Pair (UTP)
__________ cabling requires a minimum of one Cat 6A or higher and one RG-6 or RG-11 coaxial cable. -
Answer -Grade 1
__________ cabling requires a minimum of two Cat 6A or higher and two RG-6 or RG-11 coaxial cable
and minimum of one pair of optical fiber cables. - Answer -Grade 3
__________ cabling requires a minimum of two Cat 6A or higher and two RG-6 or RG-11 coaxial cable. -
Answer -Grade 2
__________ can be used to substitute for CATV cable, but CMX and FPLP cannot. - Answer -CATVP
__________ cannot be used for antennas and their lead-in conductors. - Answer -Plastic
,__________ carries information through modulated light signals, with only the core carrying the signal. -
Answer -Optical fiber cable
__________ connectors would be required on a faceplate if you needed composite (RCA), 2 BNC and
stereo speaker connections. - Answer -Five
__________ contains UTP, coaxial cable, and fiber-optic cable within a single jacket. - Answer -
Composite cable
__________ fiber cable is used by the telephone industry for long distance communications, where the
bandwidth is essentially infinite. - Answer -Singlemode
__________ in audio refers to the difference in volume between the quietest and loudest parts of an
audio signal, measured in decibels (dB). - Answer -Dynamic range
__________ is a composite value that represents all the harmonics present in a signal. - Answer -
Total Harmonic Distortion (THD)
__________ is a conductor used to wire up speakers in order to avoid grounding issues. - Answer -
CMR 85
__________ is a limited-use television coaxial cable for residential applications. - Answer -CATVX
__________ is a measurement of how fast a signal travels through a cable relative to the speed of light in
a vacuum. - Answer -Nominal velocity of propagation
__________ is a measurement of the amount of signal energy that is reflected back to a transmitter as it
travels down a twisted pair while encountering impedance discontinuities. - Answer -Return loss
__________ is a term used in antenna specifications to describe the width of an antenna's main lobe at
the points where the voltage is 0.707 times the maximum voltage. - Answer -Beamwidth
__________ is a type of cable used for audio and video communications, consisting of a center
conductor surrounded by insulation and a shield. - Answer -Coaxial cable
__________ is caused by scattering, absorption and bending. - Answer -Fiber attenuation
__________ is not needed for focal length. - Answer -Area
__________ is often used to test and equalize loudspeakers in rooms and auditoriums, serving as a
reference signal. - Answer -Pink noise
__________ is the amount of time required for a signal to be received after it has been sent. -
Answer -Propagation delay
__________ is the difference between the amount of delay for the fastest (shortest twist lengths) and
the slowest (longest twist lengths) pairs within a cable. - Answer -Delay skew
, __________ is the difference in propagation delay between the fastest and slowest pairs of data in a
cable. - Answer -Delay skew
__________ is the distance between the entrance lens and the point where all the light rays converge to
a point, typically the camera's image sensor. - Answer -Focal length
__________ is the most important fiber specification to the user and is an important factor in testing. -
Answer -Attenuation
__________ is the noise caused by the leakage of AC power into a circuit. - Answer -Hum
__________ is the primary concern in paging and announcing systems, referring to the clarity and
understandability of the transmitted message. - Answer -Intelligibility
__________ is the recommended method for terminating copper cables, using a crimp connector. -
Answer -Compression
__________ is the reflection of small amounts of light in all directions as it travels down the fiber. -
Answer -Scattering
__________ is the total opposition to the flow of alternating current (AC) in an electrical circuit. -
Answer -Impedance
__________ is the transmission of signals at levels that interfere with the operation of nearby devices,
applications, technologies, and communication networks. - Answer -Radio frequency interference
(RFI)
__________ is typically not on a telecommunications room plan. - Answer -Ceiling information
__________ is undesired induction of a signal from one pair to another. - Answer -Near End
Crosstalk (NEXT)
__________ is unfiltered and unaltered thermal noise. - Answer -White noise
__________ is used to describe a locking device that locks during a power or equipment failure. -
Answer -Fail secure
__________ is used to describe a locking device that unlocks in the event of a power failure. -
Answer -Fail safe
__________ is used to measure the acoustic response of a room or sound field. - Answer -Pink
noise
__________ is used to transfer information between two personal computers through their serial ports.
- Answer -Null-Modem cable
__________ is what limits the length of fiber cable, because it increases proportionally with cable length.
- Answer -Light dispersion
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Eddiebeststudy. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.