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ICT Level 3 LO1-LO3 Flashcards > Connectivity Methods > Flashcards

Connectivity Methods Flashcards

1
Q

What Is Twisted Pair Cable?

A

Most common cable often used in telephone systems

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2
Q

Advantages Of TPC

A

Advantages
1. Cheaper and far easier to splice
2. susceptible to electrical interference caused by nearby equipment or wires.
3. In turn are less likely to cause interference themselves
Because it is electrically “cleaner”,
4. STP wire can carry data at a faster speed.

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3
Q

Disadvantages Of TPC

A

Disadvantages

  1. STP wire is that it is physically larger and more expensive than twisted pair
  2. STP is more difficult to connect to a terminating block.
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4
Q

Coaxial Cable Advantages

A

Advantages
1. Coaxial cable can support greater cable lengths between network devices than twisted pair cable.
2. Thick coaxial cable has an extra protective plastic cover that help keep moisture
away.

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5
Q

Disadvantages of Coaxial Cable

A

Disadvantages

  1. Thick Cable
  2. coaxial is that it does not bend easily and is difficult to install.
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6
Q

Coaxial Definiton

A

a transmission line that consists of a tube of electrically conducting material surrounding a central conductor held in place by insulators and that is used to transmit telegraph, telephone, television, and Internet signals

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7
Q

Coaxial Advantages

A
  1. Easy To Install
  2. Small IN DIAMETER
  3. Not Much Interference from other things
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8
Q

Coaxial Disadvantages

A
  1. If the cable fails the whole network will go down
  2. Cost Is High due to the stiffness of the cable
  3. Cost Of Maintenance is high
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9
Q

What Is Optical Fibre?

A

a thin flexible fibre with a glass core through which light signals can be sent with very little loss of strength.

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10
Q

What 3 things do Lasers Transmit, and is it through air or glass?

A
  1. Data Signal
  2. Voice Signal
  3. Video Signal

THROUGH AIR! GLASS IS OPTICAL FIBRES!

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11
Q

Advantages of Laser Networks

A
  1. No Physical Cables, No Trip Hazard

2. Good Enough Bandwith for office and normal internet browsing

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12
Q

Disadvantages Of Laser Networks

A
  1. Interference Can Occur Through Walls
  2. Only Supports a limited amount of connections
  3. Not good for big businesses
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13
Q

What Is Bluetooth?

A

Bluetooth is a type of wireless technology for sending data over short distances, the chip can be plugged into devices such as computers, digital cameras and smartphones.

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14
Q

3 Advantages Of Bluetooth

A
  1. Excellent for short range communication
  2. Low power, ideal for battery operation
  3. Can use passwords to only allow authorised people to connect

OTHER AD’S;
World-wide standard so all Bluetooth certified devices are compatible

Fully automatic - can auto-sense other Bluetooth devices nearby

Does not require line-of-sight, unlike infrared

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15
Q

2 Disadvantages Of Bluetooth

A
  1. Not particularly high bandwidth

2. It is a short range technology

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16
Q

3 Advantages Of Satellite communication

A
  1. Available Anywhere
  2. No Phone Line Required
  3. 5 - 10 X Faster Than “Dial Up”
17
Q

3 Disadvantages Of Satellite Comms

A
  1. Limited Amount Of Download And Upload Speeds
  2. Signal is affected by weather
  3. High Startup Cost
18
Q

4G Definition?

A

4G is the fourth generation of broadband cellular network technology, succeeding 3G

19
Q

4G Advantages?

A
  1. Download And Upload Files Upto 10 Times Faster than 3G

2. 4G networks offer complete privacy, security and safety. This is especially beneficial for corporate establishments

20
Q

4G Disadvantages?

A

1.

4G networks are quite affordable these days, what with pricing schemes being considerably slashed to fit users’ budgets.

21
Q

Infrared Definition?

A

This infrared beam is used as a method of remotely controlling electronic devices such as televisions.

22
Q

Ad’s Of Infrared

A
  1. High Security as the signal is short range and directional so unlikely to be intercepted
  2. Low interference from other devices and so can be used for high quality sound reproduction
23
Q

Dis Of Infrared

A

Direction of aim, it requires the transmitter and receiver to be exactly aligned for communication

Low bandwidth

24
Q

Microwave Communication Definition?

A

Microwave Communication Definition of information or energy by microwave radio waves

25
Q

WI-FI advantages?

A
  1. Wi Fi has no wires because it is a wireless technology

2. Wi Fi is easy to setup

26
Q

Wi Fi Disadvantages?

A

wifi has poor range when away from the box. When more people connect the speed of the total wifi slows down.

27
Q

Microwave Communication Advantages?

A

longer bandwidth which allows larger amount of information can be transmitted.

28
Q

Microwave Communication Disadvantages?

A
  • Line-of-sight will be disrupted if any obstacle, such as new buildings, are in the way
  • Signal absorption by the atmosphere. Microwaves suffer from attenuation due to atmospheric conditions.

ICT Level 3 LO1-LO3 Flashcards (26 decks)

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