QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) / ALREADY GRADED A+
Which fiber optic connector may be used according to the EIA/TIA 568 cabling
standard? - ANSWER: Any connector with a FOCIS standards document
What UTP Cat 3, Cat 5e, and Cat 6 or Class D, E, and F rating indicate? - ANSWER: The
Performance level of unshielded twisted pair cable
Commerical phone systems (not VoIP but POTS) traditionally use multipair UTP
cables for backbone connections with _running_____used in the telecom closet for
connections to horizontal cables running to the desktop. - ANSWER: 66 Punchdown
blocks
TIA Cat 5e or "enhanced Cat 5' cable or ISO/IEC Class D cable was introduced to
support the needs of what the computer network? - ANSWER: Gigabet Ethernet
For certifying Cat 5e/Class D Performance, installed cables are tested at ________. -
ANSWER: 100 MHz
Category 6/Class E cabling is specified and must be tested during certification to
_______MHz. - ANSWER: 250 MHz
A copper time domain reflectometer (TDR) can be used to find_________. -
ANSWER: All of these
When terminating Cat5e/6 or Class D/E UTP cabling, what must be remembered to
maintain the performance of the installed cable? - ANSWER: Keep the pairs twisted
to within 1/2 inch of the termination
Which punchdown block is more often used with multipair cables for POTS (plain old
telephone service) connections? - ANSWER: Bix block
Standards are written by manufacturers as minimum specifications to ensure
interoperability among various manufacturer's products. - ANSWER: True
While video surveillance systems traditionally used coax cable, they can use UTP in a
structured cabling system or fiber optics also. - ANSWER: True
Gigabit and faster networks only work fiber optics. - ANSWER: False
Fiber optic installations do not require inspection for compliance to local building or
electrical codes since they do not contain copper wires. - ANSWER: False
, The US National Electrical Code (NEC) requires removal of all "abandoned"
communications cabling for fire safety. - ANSWER: True
The international standards include a Class F cable for highest performance networks
that some manufacturers sell in the US as Category 7, but it is not currently a US
standard. - ANSWER: True
The name for the current generation UTP cable for use with 10 Gigabit network is
_______. - ANSWER: Cat 7
Voice grade unshielded twisted pair cables (UTP) which are only intended to carry
POTS (plain old telephone service) only need testing for_________. - ANSWER:
Wiremap
Below is the color code _________
(Colors from left: 1-8: Blue Stripe, Blue, Orange Stripe, Green Stripe, Green, Brown
Stripe, Brown) - ANSWER: Punchdown blocks
What is maximum length of a permanently installed UTP cabling link allowed in
structured cabling standards (the permanent link)? - ANSWER: 90 meters (293ft)
TIA/EIA 568 and ISO/IEC 11801 standards specify the total length of UTP patchcords
in a channel to be less than______. - ANSWER: 10 meters
If you use a Cat 5/ Class D UTP patchcord on newer Cat 6/Class E cable plant, the link
performance will typically meet_____specs. - ANSWER: Cat 5/Class D
At patchpanels,______should be used to bundle patchcords for neatness to ensure
no damage to the cables. - ANSWER: Hook and loop cable ties
What actually makes the electrical connection with the wires in a 110 block? -
ANSWER: Insulation displacement terminations in the connecting block
Does a jack have the same color code for the pairs as a punchdown block? -
ANSWER: No
The difference between the termination schemes of T568A and T568B is_______? -
ANSWER: Reversal of pairs 2 and 3
A crimp-connector like the UTP modular connector is also called a______connector. -
ANSWER: Insulation-displacement
Wireless networks require cables to connect the_____to the network. - ANSWER:
Access point
If you pulling a cable in long conduit and encounter resistance, you should________.
- ANSWER: Use cable lubricant