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Networking > Ch 5: Network Cabling > Flashcards

Ch 5: Network Cabling Flashcards

1
Q

What is the minimum category of UTP cable required in order to support Gigabit speeds?

A

Cat 5e

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2
Q

What is the maximum supported throughput of a CAT6 cable?

A

10 Gbps

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3
Q

PoE+ devices are defined by what IEEE standard?

A

802.3at

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4
Q

Both 10GBase-ER and 10GBase-EW have what maximum distance limitation on a segment of single mode fiber?

A

40km

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5
Q

Which statement accurately describes what near end crosstalk (NEXT) is?

A

NEXT is crosstalk that occurs between wire pairs near the source of a signal.

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6
Q

What multiplexing technology lowers cost by spacing frequency bands wider apart to allow for cheaper transceiver equipment?

A

coarse wavelength division multiplexing

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7
Q

A junior administrator is having issues connecting to a router’s console port using a TIA/EIA 568B standard cable and a USB serial to RJ-45 adapter, despite verifying terminal settings. What is the issue?

A

The cable must be a rollover cable.

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8
Q

Noise that can degrade or distort a signal on a network is measured with what unit?

A

decibels

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9
Q

What statement describes a transmission flaw that is occurring due to attenuation?

A

A customer modem is continuously losing signal due to large distance from the transmitting device.

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10
Q

Utilizing time slots that are adjusted according to priority and need is an example of what type of multiplexing on copper lines?

A

statistical time division multiplexing

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11
Q

In a coaxial cabling, what does the RG rating measure?

A

The materials used for shielding and conducting cores.

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12
Q

You have been awarded a contract for wiring a new federal building. What twisted-pair wiring standard must you use?

A

TIA/EIA 568A

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13
Q

A Fast Ethernet connection utilizes what pins on an RJ-45 plug?

A

1, 2, 3, 6

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14
Q

When terminating an Ethernet cable, about how far should the cable sheath extend into the plug?

A

3/8 inch

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15
Q

What is the fastest Ethernet standard that can possibly be used on twisted-pair cabling?

A

10GBase-T

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16
Q

Which of the following statements about fiber-optic cabling is accurate?

A

Light experiences virtually no resistance when traveling through glass.

17
Q

A typical fiber termination kit should include what tool for cutting a clean slice through fiber strands?

A

fiber cleaver

18
Q

What is the industry standard angle for an Angle Polished Connector (APC)?

A

8 degrees

19
Q

You’ve been handed a fiber with a 1.25-mm ferrule that requires a connector. What is the most commonly used connector for this ferrule size?

A

local connector (LC)

20
Q

Which of the following statements correctly describes the SFP+ transceiver?

A

SFP+ is the same size as SFP, and supports a theoretical maximum transmission speed of 16 Gbps.

21
Q

The 1000Base-LX utilizes light with what wavelength?

A

1300 nanometers

22
Q

What kind of tool can you use to measure voltage on a cable length?

A

multimeter

23
Q

Why should you terminate coaxial cable with connectors that are rated for the exact cable type?

A

A mismatched connector will have different impedance ratings, causing data errors.

24
Q

When viewing the pinout for T568B, what is the correct order of wire colors, starting at pin 1?

A

white/orange, orange, white/green, blue, white/blue, green, white/brown, brown

25
Q

Telephone connections follow what registered jack standard?

A

registered jack 11 (RJ-11)

26
Q

What statement regarding the Power Over Ethernet standards is inaccurate?

A

Power over Ethernet requires CAT6 or better copper cable.

27
Q

Bidirectional transceivers utilize what technology to separate the data in each direction?

A

wavelength division multiplexing

28
Q

Signals that can travel in only one direction on a medium are referred to as what type of signal?

A

simplex

29
Q

What statement correctly describes “jitter”?

A

Jitter is what happens when packets experience varying amounts of delay and arrive out of order.

30
Q

Broadband cable Internet service and cable TV are most commonly delivered over long distances via what type of cable?

A

RG-6

Networking (13 decks)

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