Fttx basics conventional Final Exam 2025.
What is one reason why broadband cable operators install a fiber optic cable in stages
instead of changing the infrastructure all at once? - -Changing the infrastructure all at once
would cause too many service disruptions.
-What is the difference between the fiber to the node (FTTN) and fiber to the curb (FTTC)
topologies? - -An FTTC is allowed a smaller number of RF amplifiers between the optical
fiber and the customer premises.
-Which of these components is used in a passive optical network? - -Optical splitters
-Which type of star topology used in a passive optical network (PON) places the (PON)
splitters into fiber access terminal (FAT) located deep in the network and closer to the
customer premises than the centralized split? - -Distributed star.
-Which element of a passive optical network (PON) uses a Bragg grating filter? - -Optical
line terminal (OLT).
-Which element of a passive optical element (PON) uses patch panels? - -Optical
distribution network (ODN)
-What is it about radio frequency over glass (RFoG) that made broadband cable operators
envision using it to make a seamless transition from the legacy hybrid fiber/coax (HFC)
architecture over to a gigabit capable passive optical network (GPON) or ethernet passive
optical network (EPON)? - -RFOG can operate in parallel with GPON or EPON, which
eliminates the need for any downtime during the transition
-How are optical splitters used in the forward path? - -In the forward path, optical splitters
are used as passive branching devices that divide an optical signal across multiple output
fibers.
-Which of the following describes a fiber pigtail? - -Fiber optic cable with pre
connectorized ends.
-Heat shrink tubing is installed over the fusion splice to strengthen and protect it. When
should the heat shrink be installed on the fiber? - -Before stripping the plastic coating from
the fiber
-Once fiber is spliced, the proper way to handle it is by - -The heat shrink sleeve that has a
steel bar inside it
-The National Electrical Safety Code requires drop cables to be placed at what minimum
depth? - -18"
What is one reason why broadband cable operators install a fiber optic cable in stages
instead of changing the infrastructure all at once? - -Changing the infrastructure all at once
would cause too many service disruptions.
-What is the difference between the fiber to the node (FTTN) and fiber to the curb (FTTC)
topologies? - -An FTTC is allowed a smaller number of RF amplifiers between the optical
fiber and the customer premises.
-Which of these components is used in a passive optical network? - -Optical splitters
-Which type of star topology used in a passive optical network (PON) places the (PON)
splitters into fiber access terminal (FAT) located deep in the network and closer to the
customer premises than the centralized split? - -Distributed star.
-Which element of a passive optical network (PON) uses a Bragg grating filter? - -Optical
line terminal (OLT).
-Which element of a passive optical element (PON) uses patch panels? - -Optical
distribution network (ODN)
-What is it about radio frequency over glass (RFoG) that made broadband cable operators
envision using it to make a seamless transition from the legacy hybrid fiber/coax (HFC)
architecture over to a gigabit capable passive optical network (GPON) or ethernet passive
optical network (EPON)? - -RFOG can operate in parallel with GPON or EPON, which
eliminates the need for any downtime during the transition
-How are optical splitters used in the forward path? - -In the forward path, optical splitters
are used as passive branching devices that divide an optical signal across multiple output
fibers.
-Which of the following describes a fiber pigtail? - -Fiber optic cable with pre
connectorized ends.
-Heat shrink tubing is installed over the fusion splice to strengthen and protect it. When
should the heat shrink be installed on the fiber? - -Before stripping the plastic coating from
the fiber
-Once fiber is spliced, the proper way to handle it is by - -The heat shrink sleeve that has a
steel bar inside it
-The National Electrical Safety Code requires drop cables to be placed at what minimum
depth? - -18"
