ITSS 4370 FINAL EXAM PART 1 SECTION 1 QUESTIONS AND ANSWERS
Cat 5e - CORRECT ANSWER✅✅Cat 5e (enhanced) cables are identical in construction to Cat5 but are
built under strict standards to reduce crosstalk issues.
Cat 6 - CORRECT ANSWER✅✅Cat 6 cables are wound tighter and are often outfitted with foil or braided
shielding, protecting the twisted pairs and helping to prevent crosstalk and noise interference.
Cat 6 Speed - CORRECT ANSWER✅✅Cat 6 cables can technically support speeds up to 10 Gbps, but can
only do so for distances of up to 55 meters.
Cat 6a - CORRECT ANSWER✅✅Cat 6a (augmented) cables support twice the maximum bandwidth and
are capable of higher transmission speeds over longer cable lengths.
Cat 6a Shielding - CORRECT ANSWER✅✅Cat 6a cables are always shielded.
Cat 7 - CORRECT ANSWER✅✅Cat 7 cables support higher bandwidth and significantly faster
transmission speeds.
Cat 7 Speed - CORRECT ANSWER✅✅Cat 7 cables can transmit up to 100 Gbps at a range of 15 meters.
Cat 7 Connector - CORRECT ANSWER✅✅Cat 7 cables are always shielded and use a modified
GigaGate45 connector, which is backwards compatible with regular Ethernet ports.
Fiber Optic Cables - CORRECT ANSWER✅✅Fiber optic cables are comprised of 1 to 144 fibers; fibers are
made of coated glass.
Fiber Cladding - CORRECT ANSWER✅✅Fibers have cladding glass that allows light to bounce off the wall
or the fiber and continue to travel along its path.
Fiber Jacket - CORRECT ANSWER✅✅Fibers are also jacketed to protect against mechanical and
environmental damage.
, Loose Tube Fiber - CORRECT ANSWER✅✅Loose tube (telco) fiber optic cables include a metallic
strength member to prevent damage to the glass fibers when pulling, and both a fiber jelly and a core
water-blocking grease.
Single Mode Fiber - CORRECT ANSWER✅✅Single Mode uses a thin 9-micrometer core fiber surrounded
by a 116-micrometer glass cladding (125 micrometers overall) that supports one transmission mode, or
one color of light.
Multi-Mode Fiber - CORRECT ANSWER✅✅Multi-Mode uses a thicker 50- to 62.5-micrometer core fiber
surrounded by 75- or 62.5-micrometer glass cladding (125 micrometers overall) that supports multiple
mode colors of light.
Transmission of a data stream - CORRECT ANSWER✅✅Transmission of a data stream over copper or
optical media results in degradation of the signal over distance with the introduction of noise. To extend
the distance a signal can be transmitted, it can be reamplified, reshaped, or retimed.
Attenuation - CORRECT ANSWER✅✅Reflection off the glass cladding results in attenuation; this multi-
mode fiber carries data shorter distances.
Repeaters - CORRECT ANSWER✅✅Repeaters or extenders are used to overcome distance limitations of
copper and optical transmission media and simply reamplify the signal.
Regenerators - CORRECT ANSWER✅✅Regenerators are used to overcome distance limitations of
copper and optical transmission media by reamplifying, reshaping, and retiming the signal.
Network Interface Unit - CORRECT ANSWER✅✅The network interface unit (NIU) serves as the point of
demarcation between the carrier network and the customer's network.
Test Jack - CORRECT ANSWER✅✅Contains a test jack for a technician to plug in a lineman's handset,
test set, or a 'butt set.' Also contains surge protection.
Cat 5e - CORRECT ANSWER✅✅Cat 5e (enhanced) cables are identical in construction to Cat5 but are
built under strict standards to reduce crosstalk issues.
Cat 6 - CORRECT ANSWER✅✅Cat 6 cables are wound tighter and are often outfitted with foil or braided
shielding, protecting the twisted pairs and helping to prevent crosstalk and noise interference.
Cat 6 Speed - CORRECT ANSWER✅✅Cat 6 cables can technically support speeds up to 10 Gbps, but can
only do so for distances of up to 55 meters.
Cat 6a - CORRECT ANSWER✅✅Cat 6a (augmented) cables support twice the maximum bandwidth and
are capable of higher transmission speeds over longer cable lengths.
Cat 6a Shielding - CORRECT ANSWER✅✅Cat 6a cables are always shielded.
Cat 7 - CORRECT ANSWER✅✅Cat 7 cables support higher bandwidth and significantly faster
transmission speeds.
Cat 7 Speed - CORRECT ANSWER✅✅Cat 7 cables can transmit up to 100 Gbps at a range of 15 meters.
Cat 7 Connector - CORRECT ANSWER✅✅Cat 7 cables are always shielded and use a modified
GigaGate45 connector, which is backwards compatible with regular Ethernet ports.
Fiber Optic Cables - CORRECT ANSWER✅✅Fiber optic cables are comprised of 1 to 144 fibers; fibers are
made of coated glass.
Fiber Cladding - CORRECT ANSWER✅✅Fibers have cladding glass that allows light to bounce off the wall
or the fiber and continue to travel along its path.
Fiber Jacket - CORRECT ANSWER✅✅Fibers are also jacketed to protect against mechanical and
environmental damage.
, Loose Tube Fiber - CORRECT ANSWER✅✅Loose tube (telco) fiber optic cables include a metallic
strength member to prevent damage to the glass fibers when pulling, and both a fiber jelly and a core
water-blocking grease.
Single Mode Fiber - CORRECT ANSWER✅✅Single Mode uses a thin 9-micrometer core fiber surrounded
by a 116-micrometer glass cladding (125 micrometers overall) that supports one transmission mode, or
one color of light.
Multi-Mode Fiber - CORRECT ANSWER✅✅Multi-Mode uses a thicker 50- to 62.5-micrometer core fiber
surrounded by 75- or 62.5-micrometer glass cladding (125 micrometers overall) that supports multiple
mode colors of light.
Transmission of a data stream - CORRECT ANSWER✅✅Transmission of a data stream over copper or
optical media results in degradation of the signal over distance with the introduction of noise. To extend
the distance a signal can be transmitted, it can be reamplified, reshaped, or retimed.
Attenuation - CORRECT ANSWER✅✅Reflection off the glass cladding results in attenuation; this multi-
mode fiber carries data shorter distances.
Repeaters - CORRECT ANSWER✅✅Repeaters or extenders are used to overcome distance limitations of
copper and optical transmission media and simply reamplify the signal.
Regenerators - CORRECT ANSWER✅✅Regenerators are used to overcome distance limitations of
copper and optical transmission media by reamplifying, reshaping, and retiming the signal.
Network Interface Unit - CORRECT ANSWER✅✅The network interface unit (NIU) serves as the point of
demarcation between the carrier network and the customer's network.
Test Jack - CORRECT ANSWER✅✅Contains a test jack for a technician to plug in a lineman's handset,
test set, or a 'butt set.' Also contains surge protection.
