Deck 5: Network Cabling

Question 1

What two connector types are typically used to terminate RG-6 and RG-59 cables?

A)f-connectors
B)BNC
C)ST couplers
D)J-hooks

Answer 1

A,B

Question 2

A _____________ is a device that retransmits a digital signal in its original form,extending the length of a segment.

Answer 2

repeater

Question 3

Digital signals are composed of pulses of precise,positive voltages and zero voltages.

Answer 3

True

Question 4

What is the maximum supported throughput and bandwidth / signal rate of Cat 5e?

A)100 Mbps
B)1000 Gbps
C)100 MHz
D)350 MHz

Question 5

Because digital signals do not depend on amplitude or frequency differences to communicate information,they are more vulnerable to EMI noise.

Question 6

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

A)Cat 3
B)Cat 5
C)Cat 5e
D)Cat 6

Question 7

A ______________ is a voltage,frequency,pulse,or phase change in an analog transmission.

Question 8

What term below is used to describe the outer-most layer of protective covering of a coaxial cable?

A)sheath
B)shield
C)braiding
D)insulation

Question 9

Frequencies used to convey speech over telephone lines fall between what two frequencies below?

A)100 Hz
B)300 Hz
C)3.3 KHz
D)5.5 KHz

Question 10

____________ causes problems only when a receiving node is expecting some type of communication,such as the rest of the data stream it has begun to accept.

Question 11

A _____________ is a simple instrument that can measure many characteristics of an electric circuit,including its resistance,voltage,and impedance.

Question 12

A serial cable with an RJ-45 connector is capable of being used through an RJ-45 Ethernet port.

Question 13

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

Question 14

A _____________ cable reverses all of the wires without regard to how they are paired.

Question 15

What is the maximum supported throughput of a CAT6 cable?

A)100 Mbps
B)1 Gbps
C)10 Gbps
D)100 Gbps

Question 16

Using DWDM,a single fiber can carry between what two numbers of channels?

A)60
B)80
C)160
D)200

Question 17

How many cable pairs are needed for 1000Base-T transmission over CAT5e cable?

A)2
B)4
C)6
D)8

Question 18

What Ethernet standard below is also referred to as "thinnet"?

A)100Base2
B)10Base2
C)100BaseT
D)10BaseT

Question 19

A continuity tester should not be used on a live network segment.

Question 20

What two items below are commonly expressed as bits transmitted per second?

A)frequency
B)amplitude
C)throughput
D)bandwidth

Question 21

Which type of multiplexing is defined by wavelength instead of frequency?

A)CWDM
B)DWDM
C)WDM
D)FDM

Question 22

The number of times that a wave's amplitude cycles from its starting point,through its highest amplitude and its lowest amplitude,and back to its starting point over a fixed period of time,is known as what term below?

A)amplitude
B)frequency
C)wavelength
D)phase

Question 23

Define how phase affects an analog signal.

Question 24

Standard PoE devices must be provided with how much power in order to function?

A)5 watts
B)12 watts
C)15.4 watts
D)25.5 watts

Question 25

Since cable TV and cable Internet can share the same coaxial cable,they are considered to be what type of technology?

A)broadband
B)baseband
C)narrowband
D)wideband

Question 26

WDM divides a beam of light into how many different wavelengths or colors?

A)10
B)20
C)30
D)40

Question 27

What is the maximum distance for 10GBase-ER and 10GBase-EW on a segment of single mode fiber?

A)550m
B)300m
C)10km
D)40km

Question 28

Ethernet is an example of what type of technology?

A)broadband
B)baseband
C)wideband
D)narrowband

Question 29

How does a digital signal compare to an analog signal?

Question 30

Using a form of transmission that allows multiple signals to travel simultaneously over one medium is known as which of the following options?

A)embedding
B)multiplexing
C)coupling
D)modulating

Question 31

Explain what a TDR is,and describe how it is used.

Question 32

What type of cross-talk occurs between wire pairs near the source of a signal?

A)far end cross talk
B)near end cross talk
C)alien cross talk
D)pair migration cross talk

Question 33

Which of the following connectors is the most common for multimode fiber?

A)ST
B)SC
C)FC
D)MT-RJ

Question 34

The most common multiplexing technology used in conjunction with fiber optics is which option below?

A)DWDM
B)CWDM
C)FDM
D)WDM

Question 35

Phone companies make use of what type of multiplexing in order to allow for phone services and DSL services over the same line?

A)WDM
B)FDM
C)DWDM
D)CWDM

Question 36

Which option below reflects the standard impedance of an RG-6 cable?

A)50 ohms
B)60 ohms
C)65 ohms
D)75 ohms

Question 37

A device that is responsible for modulating digital signals into analog signals,and demodulating analog signals into digital signals at the receiving end,is known as?

A)A modem
B)A transceiver
C)A demuxer
D)A multiplexer

Question 38

What is modulation? Provide two examples of how it can be used.

Question 39

A measure of a signal's strength at any given time is known as which term below?

A)amplitude
B)frequency
C)phase
D)wavelength

Question 40

Describe two ways in which analog and digital signals are boosted.

Question 41

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
A term used to refer to a type of twisted-pair cable.All of the category cables fall under the TIA/EIA 568standard.

Question 42

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
A form of transmission that allows multiplesignals to travel simultaneously over one medium.

Question 43

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
A character encoding system consisting of 128characters.

Question 44

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
Cross-talk measured at the far endof the cable from the signal source.

Question 45

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
Amultiplexing technique used over single-mode or multimodefiber-optic cable in which each signal is assigned adifferent wavelength for its carrier wave.

Question 46

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
The amount of data that a medium transmitsduring a given period of time.

Question 47

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
An unwanted connection,such as when exposedwires touch each other.

Question 48

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
Physical layer standard for networks thatspecifies 1-Gbps transmission over fiber-optic cable usingbaseband transmission,relying on 1300 nanometer wavelengths.

Question 49

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
A Physical layer standard for networks that achieves 1 Gbps over Cat 6 or better cabling using only two pairs of wires.

Question 50

Matching
Match each correct item with the statement below.
a.1000Base-LX
b.1000Base-TX
c.ASCII
d.Cat (category)
e.DWDM (Dense Wavelength Division Multiplexing)
f.far end cross-talk (FEXT)
g.multiplexing
h.short circuit
i.throughput
j.wavelength
The distance between corresponding points on awave's cycle,expressed in meters or feet.