Data Communications Ch. 05 Review

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MTRJ

Which fiber connector contains two strands of fiber in each ferrule?

NEXT

Which kind of crosstalk occurs between wire pairs near the source of the signal?

STDM (statistical time division multiplexing)

Which kind of multiplexing assigns slots to nodes according to priority and need?

Cat 5e, Cat 6a, Cat 7

Which of these categories of twisted-pair cable can support Gigabit Ethernet?

Tone Locator

Which part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair?

Bandwidth

Which transmission characteristic is never fully achieved?

fiber type mismatch

What type of fiber cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable?

3/8 of an inch

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

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

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

TIA/EIA 568A

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

Local Connector

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?

Simplex

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

False

A short circuit is one where needed connections are missing, such as when a wire breaks.

True

Latency on data networks is based on a calculation of a packet's round trip time (RTT).

True

Multimode fiber contains a core that is larger than a single mode fiber core.

White/Green

Suppose you're creating patch cables to be used in a government office. What color wire goes in the first pin?

registered jack 11 (RJ-11)

Telephone connections follow what registered jack standard?

Cat 6a

What is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissions?

10GBASE-T

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

10 Gbps

What is the maximum supported throughput of a CAT6 cable?

Cat 5e

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

Coaxial cable, F-connector

What kind of cable uses BNC connectors? Which connector is likely to be used by cable TV?

Multimeter

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

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

What statement correctly describes "jitter"?

Power over Ethernet requires CAT6 or better copper cable.

What statement regarding the Power Over Ethernet standards is inaccurate?


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