Lesson 2 Flashcards
(108 cards)
1
Q
What is the data conduit for the network
A
Network Media
2
Q
Network Media
A
conduit for the network
3
Q
Types of media
A
bound and unbound
4
Q
Bound Media
A
copper
fiber
Uses a physical conductor Metal Glass Plastic
5
Q
Unbound Media
A
RF
Wireless
Microwave
IR
6
Q
Bounded Media conductor types
A
solid or braided
7
Q
Shielding
A
braided wire or foil
Used to insulate from interference
8
Q
Twisted Pair
A
UTP
STP
9
Q
UTP
A
no shielding
contains four pairs
stranded or solid
inexpensive and reliable
10
Q
STP
A
foil shielding to resist interference
Four Pairs
Stranded or solid core
More expensive
11
Q
Twisted pair can come in what pairings
A
2 pair 4 Pair 6 Pair 25 Pair 100 Pair
12
Q
Color of primary twisted pair wires
A
white and XXX
13
Q
Color of secondary twisted pair wires
A
solid color
14
Q
What is the standard range of twisted pair
A
100m
15
Q
T568A
A
1 white green 2 green 3 white orange 4 blue 5 blue white 6 orange 7 white brown 8 brown
16
Q
T568B
A
1 white orange 2 green 3 white green 4 blue 5 blue white 6 green 7 white brown 8 brown
17
Q
Can UTP cables be connected together
A
with a UTP coupler
18
Q
What does RJ stand for
A
Registered Jack
19
Q
Name parts of coax cable
A
shielding
insulator
conductor
20
Q
Name RG cable types
A
RG 59 RG 6 RG 8 RG 58 RG 9
21
Q
What does RG stand for
A
Radio Guide
22
Q
Name the different types of Coax connectors
A
F
BNC
23
Q
Name some other copper cable types
A
Serial cable Fire wire USB Broadband over power line HDMI
24
Q
Topic B
A
Topic B
25
Name the parts of fiber
buffer
coating
cladding
core
26
what produces the light in fiber
led
| laser
27
what are the types of fiber
single mode at 9 microns
| multimode at 50 microns
28
What causes refraction
change in velocity which is caused by a change in density
29
angle of incidence
angle of reflection
30
Fiber connectors are
```
ST
SC
LC
MTRJ
FC
FDDI
Biconic
SMA
```
31
What are the types of ferrule polish
PC -40 db
UPC -55db
APC -70db
32
distance for twisted pair
100m
33
distance for coax
500m
34
distance for fiber
500m for single mode
| ultra quality can see 62 miles
35
Topic C
Topic C
36
What are the network media performance factors
Noise
Attenuation
Impedance
37
Signal to noise ratio decreases or increases with the transmitting distance
decreases
38
Attenuation increase when cable length is exceeded
True
39
What is impedance
electrical resistance
40
Media converter
changes signal to accommodate different types of media
41
Types of media converters
multimode to Ethernet
fiber to coax
single mode to multi mode
single mode to Ethernet
42
Demarcation point
f
43
Backbone wiring
f
44
Equipment room
f
45
Telecomm Closet
f
46
Horizontal Wiring
f
47
Work Area
f
48
Premise Wiring
collection of cables connector and other devices for LAN and phone equipment. Consists of vertical and horizontal cable runs
49
Premise wire components
```
Drop cable
Patch panel
Patch cable
Cross connects
Distribution Frames
Wiring closet
```
50
Which type of cable to use on unlike devices
straight through cable
51
Which type of cable to use on like devices
cross over cable
52
Which type of cable to use to connect to a router console port
roll over cable
53
Types of punch down blocks
66 block
| 110 block
54
66 block
low bandwidth transmissions
55
110 block
used for structured wiring
| high bandwidth
56
Plenum
Tightly jacketed network cable to prevent fire from spreading down cable.
Does not emanate poisonous gases when it burns
57
When should you use Plenum
In HVAC systems
Structured and suspended ceilings
Under raised floors
In firebreak walls
58
Can non plenum cables run through a fire break
no
59
Is PVC plenum
no it is not plenum
60
what helps you manage cables
Cable management
61
What is used to support cables through cabling routes
Cable trays
Cable ladders
Cable Baskets
62
What is used to connect circuits to a network
Patch panels
63
All cable labeling is managed through
Move/Add/Change or MAC
64
Cable labeling
Should be typed not handwritten
Attached to the port
Attached to the cable system, circuit or patch panel
Label should be placed within 12" of each end of the cable.
65
FSAN
Pg 88
66
A UPS provides what for the network
Backup power
Power Conditioning
Real time monitoring and controlled shut down
67
Other things to consider regarding power management
Power converters
Circuits
Inverters
Power redundancy
68
What should be considered with Device placement
Proximity to power
Ease of access
Other devices
69
What is the standard rack mount format
19 inches
70
Name the two types of racks
Two post lightweight for switches
Four post heavy weight for servers
71
Guidelines for Installing Bounded Network Media
Pg 91
72
What can cause network interference
Radio
TV
Cell Phones
Radar
73
Interference reduces the network reliability and performance
True
74
Electrical Noise
Unwanted electrical signal present in the network media
75
Name some sources of electrical noise
Power wires
Meatal based transmission media
Electric motors
Electrical heat generating devices
Fluorescent lights
76
How do you protect sensitive devices from electrical noise
power conditioning
surge protectors
77
What directs high voltages away from humans and equipment
Grounding
78
What helps prevent noise on network media conductors
Grounding
Shielding
79
What is the connection between ground and shield called
Drain
80
Why are shields drained in only one location
To prevent a grounding loop
81
Grounding loop
When a grounding shield introduces noise in the data signal
82
Cross talk
when data wires introduce interference into one another
83
How to alleviate cross talk
Introducing numerous twists at regular intervals into the twisted pairs. The more twists the better.
84
Tightness of the twists in twisted pair is called the
Twist ratio
85
Can you untwist Cat 5 Cat 3 and Cat 6
Cat 5 only 3/8 of an inch
Cat 3 doesn't matter
Cat 6 connector will not allow it to be untwisted
86
Noise reduction consideration
Separate data and electrical cables
Fluorescent lights
Power grounding
Connector installation
Use of other media like fiber
87
What are the twisted pair connectors
RJ-45 or RJ-11 (less used is RJ-48)
88
What separates the conductor and shield in coax
Dialectric insulator
89
Types of coax cables
multiple strand or solid core
90
What does cladding do
reflect light back into the fiber
91
Does cladding increase the distance the signal can travel without regeneration
Yes
92
Angle of refraction
angle the light changes when it leaves one medium and enters the second medium
93
Drop Cable
Wire that runs to a PC, printer or other device connected to a network
94
Patch panel
connection point for drop and patch cables
95
Patch cable
cable that is plugged into the patch panel to connect two drop cables
96
Most patch cable stranded or solid core
solid core
97
Cross connects
wires that connect two drop cables to a patch panel
Cross connects are rarely used on modern networks
98
Types of cross connects
Main cross connects
Intermediate cross connects
Horizontal cross connects
Vertical cross connects
99
Distribution frames
devices that terminate cables and enable connections
100
Wiring closet
network closet where patch panel are installed
101
Cable to connect unlike devices
straight through cable
102
Cable used to like devices
cross over cable
103
Cable used to connect to the router's console port
roll over cable
104
Used to connect telephone lines to network lines
punch down block
105
Punch down blocks typically support which types of networks
low bandwidth networks and token ring networks
106
Which punch down block is used to support higher bandwidth than 66 blocks
110 punch down block
107
Free Standing Racks
heavier duty racks that don't need to be bolted to the floor for stability
108
Competed
Completed
