Deck 3: Transmission Basics and Networking Media

Question 1

Which connector is used in RS-232 transmissions?

A) DB-25
B) ST
C) BNC
D) Cat-5

Answer 1

A

Question 2

The distance between corresponding points on a wave's cycle is called its ____.

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

Answer 2

D

Question 3

Ethernet is an example of a baseband system found on many LANs.

Answer 3

True

Question 4

The most significant factor in choosing a transmission method is its ____.

A) noise
B) attenuation
C) throughput
D) latency

Question 5

In a ____ cable,the usual wire positions are exactly reversed in one of the two RJ-45 terminations.

A) crossover
B) cross-through
C) straight-through
D) rollover

Question 6

The data transmission characteristic most frequently discussed and analyzed by networking professionals is ____.

A) noise
B) scalability
C) throughput
D) cost

Question 7

The strength of an electrical signal is directly proportional to its frequency.

Question 8

The more twists per foot in a pair of wires,the more resistant the pair will be to ____.

A) throughput
B) attenuation
C) cross talk
D) latency

Question 9

Modulation can be used to make a signal conform to a specific pathway.

Question 10

____ describes a popular serial data transmission method.

A) EIA/TIA Commercial Building Wiring Standard
B) EIA/TIA RS-232 (Recommended Standard 232)
C) EIA/TIA 568A standard
D) EIA/TIA 568BA standard

Question 11

Serial refers to a style of data transmission in which the pulses that represent bits follow one another along a ____ transmission line.

A) long
B) short
C) secondary
D) single

Question 12

The byte 00001110 means ____ on a digital network.

A) 3
B) 6
C) 14
D) 30

Question 13

When signals are free to travel in both directions over a medium simultaneously,the transmission is considered ____.

A) simplex
B) multiplex
C) half-duplex
D) full-duplex

Question 14

In modulation,a simple wave called a ____ wave,is combined with another analog signal to produce a unique signal that gets transmitted from one node to another.

A) carrier
B) data
C) information
D) FM

Question 15

Latency occurs when a signal traveling on one wire or cable infringes on the signal traveling over an adjacent wire or cable.

Question 16

Modern LANs use ____ or higher wiring.

A) Cat 3
B) Cat 5
C) RG-6
D) RG-59

Question 17

____ is a technology used with fiber-optic cable,which enables one fiber-optic connection to carry multiple light signals simultaneously.

A) Statistical multiplexing
B) WDM (wavelength division multiplexing)
C) TDM (time division multiplexing)
D) FDM (frequency division multiplexing)

Question 18

A digital signal composed of a pulse of positive voltage represents a ____.

A) 0
B) 1
C) 4
D) 8

Question 19

The maximum distance a signal can travel and still be interpreted accurately is equal to a segment's maximum length.

Question 20

One of the most common transmission flaws affecting data signals is ____.

A) noise
B) attenuation
C) throughput
D) latency

Question 21

____________________ are the pieces of hardware that connect the wire to the network device.

Question 22

The use of 1s and 0s to represent information is characteristic of a(n)____________________ system.

Question 23

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Technology used to modify analog signals to make them suitable for carrying data over a communication path.

Question 24

Which standard is also known as structured cabling?

A) TIA/EIA Commercial Building Wiring Standard
B) TIA/EIA RS-232 (Recommended Standard 232)
C) TIA/EIA 568A Standard
D) TIA/EIA 568BA Standard

Question 25

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Transmission that involves one transmitter and multiple,undefined receivers.

Question 26

____ describes wiring that connects workstations to the closest telecommunications closet.

A) Backbone wiring
B) Horizontal wiring
C) Work area
D) Simple wiring

Question 27

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Transmission form in which (typically)digital signals are sent through direct current (DC)pulses applied to the wire.

Question 28

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
A form of transmission in which signals are modulated as radio frequency (RF)analog waves that use different frequency ranges.

Question 29

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Part of a network that contains end nodes.

Question 30

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Part of the network that does not contain end nodes.

Question 31

____________________ is a term used by networking professionals to describe the nondata information that must accompany data for a signal to be properly routed and interpreted by the network.

Question 32

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Transmission that issues signals to multiple,defined recipients.

Question 33

______________________________ cabling consists of one or more insulated wire pairs encased in a plastic sheath.

Question 34

3____________________ transmission involves one transmitter and multiple receivers.

Question 35

The points where circuits interconnect with other circuits is known as ____.

A) entrance facilities
B) cross-connect facilities
C) IDF (intermediate distribution frame)
D) telecommunications closet

Question 36

Which term describes the hardware that makes up the enterprise-wide cabling system?

A) wiring board
B) patch panel
C) network diagram
D) cable plant

Question 37

Many network problems can be traced to poor cable ____ techniques.

A) manufacturing
B) engineering
C) installation
D) planning

Question 38

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
Every pulse in a digital signal.

Question 39

Which term identifies a room containing connectivity for groups of workstations in its area?

A) MDF (main distribution frame)
B) entrance facilities
C) work area
D) telecommunications closet

Question 40

MATCHING
Match each item with a statement below:
a.bit
f.populated segment
b.modulation
g.unpopulated segment
c.baseband
h.broadband
d.EMI (electromagnetic interference)
i.nonbroadcast
e.broadcast
A common source of noise.

Question 41

Describe what FDM (frequency division multiplexing)is and how it works.

Question 42

Explain the makeup of twisted pair wire.

Question 43

Explain the makeup of coaxial cable.

Question 44

Describe the advantages of twisted pair wiring.

Question 45

Explain the makeup of fiber-optic cable.

Question 46

Describe the benefits of fiber-optic cabling over copper cabling.

Question 47

Describe a drawback of analog signals.

Question 48

Describe two benefits of digital signaling that make it worthwhile even though extra signaling pulses are involved.

Question 49

Explain how half-duplex transmissions work.

Question 50

Describe variables that may influence the final cost of implementing a certain type of media.