FIBER INSTALLATION AND
ACTIVATION EXAM
What information should always be included in fiber-optic network
documentation? - ANSWERS-Fiber assignments
Why might a technician who is troubleshooting an outage in an
optical network what to refer to the network's as-built documentation?
- ANSWERS-It will help the technician determine specific cable
lengths.
The number of rectifiers used in a DC power plant design -
ANSWERS-Is dependent upon the load placed on the system.
What is true of online uninterruptible power supply (UPS) systems? -
ANSWERS-They are recommended for commercial applications such
as data centers data centers and telecommunications operations.
Which of these are concerns for RFoG and FTTx systems? -
ANSWERS-Consideration of how and who will provide AC power to
the ONT at the customer premises.
What is true of the following types of UPS? - ANSWERS-The offline
routes incoming power directly to connected devices and switches to
battery backup during a power interruption.
,Why are backup AC generators included in many commercial AC
UPS and DC power systems? - ANSWERS-To provide AC power in
the event of a prolonged utility power interruption.
Why is -48VDC with a positive ground used by the
telecommunication industry? - ANSWERS-This reverse polarity is a
means of mitigating electrolyte corrosion on the outside plant.
Which of the following is true of a centralized power node? -
ANSWERS-It can provide sufficient power for a fiber-optic node,
including outside plant amplifiers and customer premises NIDs for
telephony service.
What is an option available on most optical nodes for connecting to
the power supply? - ANSWERS-Through a power cable that is
connected from the power supply directly to the power port of the
node.
Why do many optical nodes accept two independent power supplies?
- ANSWERS-For redundant powering of the node.
In a HFC fiber optic node, what are common voltages produced by
DC power supplies? - ANSWERS-Common voltages produced by DC
power supplies include 5, 12, and 14 VDC
Which type of PON access architecture replaced APON? -
ANSWERS-GPON
, Which type of PON architecture was formed to develop a cost-
effective, high bandwidth,easy-to-provision solutionmfor connecting
businesses, schools, libraries, and customer local area networks to the
public internet? - ANSWERS-EPON
What is the wavelength allocation for video distribution (RF overlay)
in BPON access systems? - ANSWERS-Between 1550 and 1560 nm
Which element of a PON consists of a downstream optical transmitter,
an upstream receiver, and a multiplexer/demultiplexer? - ANSWERS-
OLT
What is it about RFoG that made broadband cable operators envision
using it to make a seamless transition from the legacy HFC
architecture over to a GPON or EPON? - ANSWERS-RFoG can
operate in parallel with GPON or EPON operating independent of the
PON communications protocols and data rates.
What is the core objective of the Data Over Cable Service Interface
Specification (DOCSIS) Provisioning of Ethernet passive optical
network (EPON), or DPoE, access architecture? - ANSWERS-To
make the EPON elements appear and operate as DOCSIS elements to
the existing DOCSIS-based back office provisioning operations.
What is one of the requirements that have been identified for next-
generation access network architecture? - ANSWERS-10Gbps
downstream data rate capacity
ACTIVATION EXAM
What information should always be included in fiber-optic network
documentation? - ANSWERS-Fiber assignments
Why might a technician who is troubleshooting an outage in an
optical network what to refer to the network's as-built documentation?
- ANSWERS-It will help the technician determine specific cable
lengths.
The number of rectifiers used in a DC power plant design -
ANSWERS-Is dependent upon the load placed on the system.
What is true of online uninterruptible power supply (UPS) systems? -
ANSWERS-They are recommended for commercial applications such
as data centers data centers and telecommunications operations.
Which of these are concerns for RFoG and FTTx systems? -
ANSWERS-Consideration of how and who will provide AC power to
the ONT at the customer premises.
What is true of the following types of UPS? - ANSWERS-The offline
routes incoming power directly to connected devices and switches to
battery backup during a power interruption.
,Why are backup AC generators included in many commercial AC
UPS and DC power systems? - ANSWERS-To provide AC power in
the event of a prolonged utility power interruption.
Why is -48VDC with a positive ground used by the
telecommunication industry? - ANSWERS-This reverse polarity is a
means of mitigating electrolyte corrosion on the outside plant.
Which of the following is true of a centralized power node? -
ANSWERS-It can provide sufficient power for a fiber-optic node,
including outside plant amplifiers and customer premises NIDs for
telephony service.
What is an option available on most optical nodes for connecting to
the power supply? - ANSWERS-Through a power cable that is
connected from the power supply directly to the power port of the
node.
Why do many optical nodes accept two independent power supplies?
- ANSWERS-For redundant powering of the node.
In a HFC fiber optic node, what are common voltages produced by
DC power supplies? - ANSWERS-Common voltages produced by DC
power supplies include 5, 12, and 14 VDC
Which type of PON access architecture replaced APON? -
ANSWERS-GPON
, Which type of PON architecture was formed to develop a cost-
effective, high bandwidth,easy-to-provision solutionmfor connecting
businesses, schools, libraries, and customer local area networks to the
public internet? - ANSWERS-EPON
What is the wavelength allocation for video distribution (RF overlay)
in BPON access systems? - ANSWERS-Between 1550 and 1560 nm
Which element of a PON consists of a downstream optical transmitter,
an upstream receiver, and a multiplexer/demultiplexer? - ANSWERS-
OLT
What is it about RFoG that made broadband cable operators envision
using it to make a seamless transition from the legacy HFC
architecture over to a GPON or EPON? - ANSWERS-RFoG can
operate in parallel with GPON or EPON operating independent of the
PON communications protocols and data rates.
What is the core objective of the Data Over Cable Service Interface
Specification (DOCSIS) Provisioning of Ethernet passive optical
network (EPON), or DPoE, access architecture? - ANSWERS-To
make the EPON elements appear and operate as DOCSIS elements to
the existing DOCSIS-based back office provisioning operations.
What is one of the requirements that have been identified for next-
generation access network architecture? - ANSWERS-10Gbps
downstream data rate capacity
