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Pampanga State Agricultural University > NET 101 MODULE 4 > Flashcards

NET 101 MODULE 4 Flashcards

1
Q

A means by which a communication signal is carried from one system to another.

A

TRANSMISSION MEDIUM

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2
Q

can be defined as
anything that can carry information from a
source to a destination.

A

transmission medium

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3
Q

uses a cabling system that guides the data signals along a specific path.

A

GUIDED MEDIA

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4
Q

also known as Bounded media, which are those that provide a conduit from one device to another.

A

Guided media

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5
Q

Types of Guided media?

A

Twisted Pair Cable
Coaxial Cable
Fiber Optic Cable

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6
Q

Consist of insulated strands of copper wire twisted together to form a single media.

A

Twisted pair cable

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7
Q

What is the transmission rate of Twisted Pair Cable?

A

10-100 Mbps

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8
Q

Twisted Pair Cable Transmission of signals take place in?

A

Electrical Form

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9
Q

What is the maximum cable length of Twisted Pair Cable?

A

100 meters

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10
Q

Comes with twisted wire pair covered in metal foil. This makes it more indifferent to noise and crosstalk.

A

Shielded Twisted Pair Cable

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11
Q

A type of copper telephone wiring in which each of the two copper wires that are twisted together are coated with an insulating coating that functions as a ground for the wires.

A

Shielded Twisted Pair Cable

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12
Q

A popular type of cable that consists of two unshielded wires twisted around each other.

A

Unshielded Twisted Pair Cable

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13
Q

Due to its low cost, ___ cabling is used
extensively for local-area networks (LANs) and
telephone connections.

A

UTP/Unshielded Twisted Pair

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14
Q

does not offer as high bandwidth
or as good protection from interference as
coaxial or fiber optic cables, but it is less
expensive and easier to work with.

A

Unshielded Twisted Pair Cable

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15
Q

Protects the copper wire from physical damage.

A

Outer Jacket

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16
Q

Protects the signal from interference.

A

Twisted Pair

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17
Q

Parts of Shielded Twisted Pair.

A

Outer Jacket
Overall Shield
Pair Shields
Twisted pair

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18
Q

Isolates wires from each other and identifies each pair.

A

Color-Coded Plastic Insulation

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19
Q

UTP Categories

A

CAT1 - 8

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20
Q

Consists of a center wire surrounded by insulation and then a grounded shield of braided wire. The shield minimizes electrical and radio frequency interference.

A

Coaxial Cable

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21
Q

Although more expensive than standard telephone
wire, it is much less susceptible to interference and
can carry much more data.

A

Coaxial Cable

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22
Q

Transmission rate of Coaxial Cable?

A

100 Mbps

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23
Q

Maximum cable length of Coaxial Cable?

A

185 meters Thinnet, 500 meters Thicknet.

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24
Q

Parts of Coaxial Cable

A

Plastic Jacket
Metallic Shield
Dielectric insulator
centre core

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25
Q

A technology that uses glass (or plastic) threads
(fibers) to transmit data.

A

Fiber Optic Cable

26
Q

Consists of a bundle of hair-thin strands of glass or plastic that carry data as pulses of light.

A

Fiber Optic Calbe

27
Q

Transmission rate of Fiber Optic Cable

A

10 mbps - 100 gbps

28
Q

maximum cable length of fiber optic cable?

A

2 km - 100 km

29
Q

How does transmission signal takes place in Fiber Optic Cable?

A

optical form over a glass fiber

30
Q

parts of fiber optic cable

A

Outer Jacket
Strength Member
Coating
Cladding
Core

31
Q

Twisted Pair PROs:

A

Most flexible
Cheapest cable
Easy to install & easy to add users

32
Q

Twisted Pair CONs:

A

Shortest usable cable length
Susceptible to electrical interference
Short circuit between two conductor is possible
Low bandwidth

33
Q

COAXIAL CABLE PROs:

A

Flexible & easy to install
Relatively good resistance to electronic interference
It can span longer distance at higher data rates

34
Q

COAXIAL CABLE CONs:

A

Short cable length
More expensive to install compare to UTP
Hard to change configuration

35
Q

FIBER OPTIC CABLE PROs:

A

Small size and light weight
No electrical or electromagnetic interference
High Bandwidth
No cross talk inside the optical fiber cable. Signal can
be sent up to 100 times faster
Secure
Short circuit is not possible

36
Q

FIBER OPTIC CABLE CONs:

A

Most expensive
Difficult to install

37
Q

Transport data without using a physical
conductor.

A

UNGUIDED MEDIA

38
Q

This type of communication is often
referred to as wireless transmission.

A

UNGUIDED MEDIA

39
Q

It uses wireless electromagnetic signals to send
data.

A

UNGUIDED MEDIA

40
Q

Wireless
signals are spread over in the air and are
received and interpreted by appropriate
antennas.

A

UNGUIDED MEDIA

41
Q

is a wireless transmission medium that sends
signals using infrared light waves

A

Infrared Transmission

42
Q

Infrared Transmission frequencies?

A

300 GHz - 400 THz

43
Q

having high frequencies, cannot
penetrate walls

A

Infrared Waves

44
Q

It has a short range communication

A

Infrared Transmission

45
Q

a form of electromagnetic transmission used in
wireless communication

A

Radio Frequency Transmission

46
Q

These are used in wireless communication because of their property to penetrate through objects and travel long distances

A

Radio Frequency Transmission

47
Q

RF signals frequency

A

3kHz - 300 GHz

48
Q

distributes radio signals through the air over long distances
such as between cities, regions, and countries and short
distances such as within an office or home.

A

Radio waves Transmission

49
Q

Radio waves can have wavelength from

A

1mm - 100,000km

50
Q

Radio waves frequencies

A

3kHz - 1 GHz

51
Q

Example of Radio Waves Transmission

A

Bluetooth, UWB, Wi-Fi, and WiMAX

52
Q

It is a omnidirectional (send out signals in all directions) Transmission

A

Radio Waves Transmission

53
Q

are radio waves that provide a high-speed signal transmission.

A

Microwaves

54
Q

often called fixed wireless, involves
sending signals from one microwave station to another

A

Microwave Transmission

55
Q

Wavelength of Microwave Transmission

A

1mm - 1meter

56
Q

microwave Transmission frequencies

A

300 MHz to 300 GHz

57
Q

It is a Unidirectional (line of sight) Transmission

A

Microwaves Transmission

58
Q

electromagnetic radiation with a wavelength
ranging between infrared radiations and ultraviolet
radiations.

A

Light Wave Transmission

59
Q

Wavelength range of Light Wave Transmission

A

430 to 750 THz

60
Q

These are unguided optical signals such as
laser and are unidirectional.

A

Light Wave Transmission

61
Q

IEEE Standards:

A

802.11a
802.11b
802.11g
802.11n
802.11ac
802.11ax

62
Q

What are the speeds of these?

802.11a
802.11b
802.11g
802.11n
802.11ac
802.11ax

A

54 Mbps
11 Mbps
54 Mbps
600 Mbps
1.3 Gbps
10-12 Gbps

Pampanga State Agricultural University (5 decks)

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