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NCTI MT2 - MT3 QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+
NCTI MT2 - MT3 QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+
[Meer zien]Voorbeeld 4 van de 72 pagina's
Voorbeeld 4 van de 72 pagina's
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Voorbeeld van de inhoud
Name: Score:70 Multiple choice questions
Term 1 of 70
Why are backup AC generators included in many commercial AC uninterruptible power supply
(UPS) and DC power systems?
To access the cable's rip cord and to check the cutting depth of the knife or ringing tool
To provide AC power in the event of a prolonged utility power interruption.
To prevent the accidental transfer of fiber debris or fiber chips onto clean hands.
P2P topologies are more stable than P2MP topologies.
Term 2 of 70
When would a mid-entry splice in a fiber-optic network be used?
They are recommended for commercial applications such as data centers and
telecommunications operations.
A location where a select number of optical fibers need to be spliced, and the remaining
buffer tubes and fibers remain untouched.
In a self-healing ring network that requires only two fibers to feed an optical fiber drop.
Falling branches, pole attachment problems, and improper sag and loading
considerations.
Term 3 of 70
Which type of passive optical network (PON) architecture was formed to develop a cost-
effective, high-bandwidth, easy-to-provision solution for connecting businesses, schools,
libraries, and customer local area networks to the public Internet?
Ethernet PON (EPON).
Gigabit-capable Pon (gpon).
Optical line terminal (olt).
Point-to-multipoint (p2mp).
,Term 4 of 70
What is the wavelength allocation for video distribution (RF overlay) in broadband PON
(BPON) access systems?
Optical line terminal (olt).
The fixed v-groove splicer.
Between 1,550 and 1,560 nm
2.5 gbps.
Term 5 of 70
What is the best way to prevent problems in outside fiber-optic splice enclosures?
Make a number of test splices set up the fusion splicer and to verify the instrument's
settings and calibration for both the environment and the type of fiber to be spliced.
The outer jacket and the internal cable structures must be secured individually to protect
the closure and splice trays from the effects of expansion and contraction.
They are recommended for commercial applications such as data centers and
telecommunications operations.
The offline type routes incoming power directly to connected devices and switches to
battery backup during a power interruption.
Term 6 of 70
Which of the following is true of a centralized power node?
It can provide sufficient power for a fiber-optic node, including outside plant amplifiers
and customer premises network interface devices (NID) for telephony service.
A controlled environment such as a splicing van, trailer, or tent and a stable work surface
that is large enough to accommodate the fusion splicer, tools, and the splice closure.
The role of maintenance is to proactively maintain network tolerances and recognize,
locate, and remedy potential problems.
An optical power meter is used to measure the strength of light signals anywhere in a
fiber system where a connection can be made.
,Term 7 of 70
Why do many optical nodes accept two independent power supplies?
Expanded troubleshooting capability.
During equipment activation.
For redundant powering of the node.
Use the existing coaxial network infrastructure.
Term 8 of 70
what does water do to the glass core of an optical fiber?
A controlled environment such as a splicing van, trailer, or tent and a stable work surface
that is large enough to accommodate the fusion splicer, tools, and the splice closure.
Falling branches, pole attachment problems, and improper sag and loading
considerations.
Water causes the glass core of the optical fiber to become opaque, which degrades the
signal as it's transported through the fiber.
The offline type routes incoming power directly to connected devices and switches to
battery backup during a power interruption.
Term 9 of 70
Which component of a digital optical network is used to receive digital modulation light waves
and convert them to an electrical signal?
Fused.
Optical transponder.
Signal distribution.
Use the existing coaxial network infrastructure.
, Term 10 of 70
A fiber-optic network maintenance plan should be developed with which of the following in
mind?
The role of maintenance is to proactively maintain network tolerances and recognize,
locate, and remedy potential problems.
The task of compiling the physical document must become the responsibility of an
identifiable position or organization.
They are recommended for commercial applications such as data centers and
telecommunications operations.
Because Velcro straps are removable and can hold the pigtails together without placing
undue strain on the optical fibers.
Term 11 of 70
How should the buffer tubes be secured in the closure?
The offline type routes incoming power directly to connected devices and switches to
battery backup during a power interruption.
Water causes the glass core of the optical fiber to become opaque, which degrades the
signal as it's transported through the fiber.
The buffer tubes should be secured with tie wraps to allow slight movement without
pulling or stressing the optical fibers.
The outer jacket and the internal cable structures must be secured individually to protect
the closure and splice trays from the effects of expansion and contraction.
Term 12 of 70
The number of rectifiers used in a DC power plant design
Buffer tubes protect and separate the optical fiber in smaller bundles.
is dependent upon the load placed on the system.
The fixed V-groove splicer.
Expanded troubleshooting capability.
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