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1
What is the bandwidth of category-4 wire?
10 MHz
12 MHz
15 MHz
20 MHz
2 What is the meaning of the acronym AWG?
American Wire Gauge
American Workman Gauge
Allied Wire Gauge
Allied Workman Gauge
3 Why are some outside plant cables filled with anti-hygroscopic gel?
to reduce strain on the wires inside
to provide UV protection
to prevent water from entering the cable
to reduce EMI from power lines
4 In most business LANs, which connector is used with twisted-pair networking cable?
BNC
RJ-11
RJ-45
Type F
5 Which statement is true of stranded copper wire?
It is composed of a single copper core.
It is the preferred wire to be used with IDCs.
It is more flexible than solid wire.
It should not be used in a patch panel.
6 What is the meaning of the acronym ANSI?
American National Structure Institute
Allied National Standards Institute
Allied National Structure Institute
American National Standards Institute
7 Which color is pair 2 in twisted-pair cabling?
green
orange
blue
brown
8 Which term denotes the solid color wire in a pair?
tip
UTP
ring
ScTP
9 Why is analog video one of the most demanding types of signals?
must be transmitted over fiber optic cables
limited to two voltage levels
must be transmitted at very high data rates
covers a wide range of frequencies
10 Which connectors are used with coaxial cable? (Select two.)
BNC
RJ-11
RJ-45
Type F
11 Which type of cable insulation can be used in high temperature applications?
rubber
elastomers
flouropolymers
thermoplastics
12 What is the primary use for Category 4 cable?
thicknet
thinnet
Ethernet
Token Ring
13 What is bonding?
splicing two wires together
interconnecting grounded equipment
attaching cables to terminators
joining two network segments
14 What does the current Anixter XP system of cable rating include beyond the EIA/TIA standards?
higher twists per cable
stress testing
thermal conductivity
live data testing
15 What is the meaning of the acronym UL?
Under Laboratories
Universal Laboratories
Underwriters Laboratories
United Laboratories
16
Which of the following are broadband technologies? (Select two.)
cable TV
10baseT
DSL
Ethernet
17
What is the term used to include all the wiring in a building?
cable plant
structured network wiring
composite cabling
network infrastructure
18
Which color is the binder group that holds pair 174?
red-green
red-orange
black-green
white-brown
19
What does the "e" stand for in Category 5e cable?
electrical
extended
enhanced
extrapolated
20
Which property of copper gives it the ability to be drawn into a wire?
conductivity
ductility
corrosion resistance
tensile strength
21
How does UTP cabling limit signal degradation caused by EMI?
The foil shield blocks EMI.
Cancellation is the only means of protection.
The insulation is EMI resistant.
UTP is not affected by EMI.
22
Which term describes the process of pushing melted copper through a die?
extrusion
drawing
insulation
smelting
23
Which wire is still being installed for telephones today?
Category 3
Category 1
Category 2
Category 4
24
Which color is pair 23 in a 25 pair cable?
red blue
white slate
violet green
yellow green
25
Which device connects a balanced circuit to an unbalanced circuit?
repeater
multiplexer
balun
modem
26
What can reduce crosstalk?
regenerate the signal at the far end
change the twist ratio from pair to pair
protect the cable from moisture and grease
keep all pairs as close as possible
27
Which common elements do most copper cables contain? (Select two.)
insulation
cladding
kevlar
sheath
28
How many twisted pairs are in Category 6 cable?
4
8
10
12
29
Why is 900 pair rarely exceeded when running cable between buildings?
too much cable weight
too much space required for surge-protecting devices
will not meet Code requirements
too much crosstalk
30
What is the description for the acronym NEC?
New Electrical Code
National Electrical Code
National Electrical Commission
National Electrical Committee
31
What is the most common connector used with coaxial cable?
BNC
vampire tap
RJ-45
RJ-11
32
What is the major difference between Category 5e and Category 5 cable?
shielding
more wires
more twists per foot
different gauge of wire
33
In radio, what is the typical impedance of coaxial cable in Ohms?
37
50
75
93
150
34
When running cable through a firewall, what is the purpose of fire-stopping?
stops drafts
stops smoke
restores the appearance of the firewall
restores the integrity of the firewall