Exam 2: Chapters 3 and 4

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EXAM 2 CHPTRS 3 and 4

Percentage92.0%

1.
The distance between corresponding points on a wave’s cycle is called its ____. A) amplitude
B) frequency
C) phase
D) wavelength
Points Earned:2.0/2.0
Correct Answer(s):D

2.
A digital signal composed of a pulse of positive voltage represents a ____. A) 0
B) 1
C) 4
D) 8
Points Earned:2.0/2.0
Correct Answer(s):B

3.
The byte 00001110 means ____ on a digital network.
A) 3
B) 6
C) 14
D) 30
Points Earned:2.0/2.0
Correct Answer(s):C

4.
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
Points Earned:2.0/2.0
Correct Answer(s):A

5.
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
Points Earned:2.0/2.0
Correct Answer(s):D

6.
____ 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)
Points Earned:2.0/2.0
Correct Answer(s):B

7.
The data transmission characteristic most frequently discussed and analyzed by networking professionals is ____. A) noise
B) scalability
C) throughput
D) cost
Points Earned:2.0/2.0
Correct Answer(s):C

8.
One of the most common transmission flaws affecting data signals is ____. A) noise
B) attenuation
C) throughput
D) latency
Points Earned:2.0/2.0
Correct Answer(s):A

9.
The most significant factor in choosing a transmission method is its ____. A) noise
B) attenuation
C) throughput
D) latency
Points Earned:2.0/2.0
Correct Answer(s):C

10.
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
Points Earned:2.0/2.0
Correct Answer(s):C

11.
Modern LANs use ____ or higher wiring.
A) Cat 3
B) Cat 5
C) RG-6
D) RG-59
Points Earned:2.0/2.0
Correct Answer(s):B

12.
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
Points Earned:2.0/2.0
Correct Answer(s):D

13.
____ 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
Points Earned:2.0/2.0
Correct Answer(s):B

14.
Which connector is used in RS-232 transmissions?
A) DB-25
B) ST
C) BNC
D) Cat-5
Points Earned:2.0/2.0
Correct Answer(s):A

15.
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
Points Earned:2.0/2.0
Correct Answer(s):D

16.
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
Points Earned:2.0/2.0
Correct Answer(s):D

17.
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
Points Earned:2.0/2.0
Correct Answer(s):A

18.
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
Points Earned:2.0/2.0
Correct Answer(s):B

19.
Which term identifies a room containing connectivity for groups of workstations in its...
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