NET 101 MODULE 4

Question 1

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

Answer 1

TRANSMISSION MEDIUM

Question 2

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

Answer 2

transmission medium

Question 3

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

Answer 3

GUIDED MEDIA

Question 4

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

Answer 4

Guided media

Question 5

Types of Guided media?

Answer 5

Twisted Pair Cable
Coaxial Cable
Fiber Optic Cable

Question 6

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

Answer 6

Twisted pair cable

Question 7

What is the transmission rate of Twisted Pair Cable?

Answer 7

10-100 Mbps

Question 8

Twisted Pair Cable Transmission of signals take place in?

Answer 8

Electrical Form

Question 9

What is the maximum cable length of Twisted Pair Cable?

Answer 9

100 meters

Question 10

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

Answer 10

Shielded Twisted Pair Cable

Question 11

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.

Answer 11

Shielded Twisted Pair Cable

Question 12

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

Answer 12

Unshielded Twisted Pair Cable

Question 13

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

Answer 13

UTP/Unshielded Twisted Pair

Question 14

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.

Answer 14

Unshielded Twisted Pair Cable

Question 15

Protects the copper wire from physical damage.

Answer 15

Outer Jacket

Question 16

Protects the signal from interference.

Answer 16

Twisted Pair

Question 17

Parts of Shielded Twisted Pair.

Answer 17

Outer Jacket
Overall Shield
Pair Shields
Twisted pair

Question 18

Isolates wires from each other and identifies each pair.

Answer 18

Color-Coded Plastic Insulation

Question 19

UTP Categories

Answer 19

CAT1 - 8

Question 20

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

Answer 20

Coaxial Cable

Question 21

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

Answer 21

Coaxial Cable

Question 22

Transmission rate of Coaxial Cable?

Answer 22

100 Mbps

Question 23

Maximum cable length of Coaxial Cable?

Answer 23

185 meters Thinnet, 500 meters Thicknet.

Question 24

Parts of Coaxial Cable

Answer 24

Plastic Jacket
Metallic Shield
Dielectric insulator
centre core

Question 25

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

Answer 25

Fiber Optic Cable

Question 26

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

Answer 26

Fiber Optic Calbe

Question 27

Transmission rate of Fiber Optic Cable

Answer 27

10 mbps - 100 gbps

Question 28

maximum cable length of fiber optic cable?

Answer 28

2 km - 100 km

Question 29

How does transmission signal takes place in Fiber Optic Cable?

Answer 29

optical form over a glass fiber

Question 30

parts of fiber optic cable

Answer 30

Outer Jacket Strength Member Coating Cladding Core

Question 31

Twisted Pair PROs:

Answer 31

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

Question 32

Twisted Pair CONs:

Answer 32

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

Question 33

COAXIAL CABLE PROs:

Answer 33

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

Question 34

COAXIAL CABLE CONs:

Answer 34

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

Question 35

FIBER OPTIC CABLE PROs:

Answer 35

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

Question 36

FIBER OPTIC CABLE CONs:

Answer 36

Most expensive Difficult to install

Question 37

Transport data without using a physical conductor.

Answer 37

UNGUIDED MEDIA

Question 38

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

Answer 38

UNGUIDED MEDIA

Question 39

It uses wireless electromagnetic signals to send data.

Answer 39

UNGUIDED MEDIA

Question 40

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

Answer 40

UNGUIDED MEDIA

Question 41

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

Answer 41

Infrared Transmission

Question 42

Infrared Transmission frequencies?

Answer 42

300 GHz - 400 THz

Question 43

having high frequencies, cannot penetrate walls

Answer 43

Infrared Waves

Question 44

It has a short range communication

Answer 44

Infrared Transmission

Question 45

a form of electromagnetic transmission used in wireless communication

Answer 45

Radio Frequency Transmission

Question 46

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

Answer 46

Radio Frequency Transmission

Question 47

RF signals frequency

Answer 47

3kHz - 300 GHz

Question 48

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.

Answer 48

Radio waves Transmission

Question 49

Radio waves can have wavelength from

Answer 49

1mm - 100,000km

Question 50

Radio waves frequencies

Answer 50

3kHz - 1 GHz

Question 51

Example of Radio Waves Transmission

Answer 51

Bluetooth, UWB, Wi-Fi, and WiMAX

Question 52

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

Answer 52

Radio Waves Transmission

Question 53

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

Answer 53

Microwaves

Question 54

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

Answer 54

Microwave Transmission

Question 55

Wavelength of Microwave Transmission

Answer 55

1mm - 1meter

Question 56

microwave Transmission frequencies

Answer 56

300 MHz to 300 GHz

Question 57

It is a Unidirectional (line of sight) Transmission

Answer 57

Microwaves Transmission

Question 58

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

Answer 58

Light Wave Transmission

Question 59

Wavelength range of Light Wave Transmission

Answer 59

430 to 750 THz

Question 60

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

Answer 60

Light Wave Transmission

Question 61

IEEE Standards:

Answer 61

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

Question 62

What are the speeds of these? 802.11a 802.11b 802.11g 802.11n 802.11ac 802.11ax

Answer 62

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