Flashcards
1.4
Flashcards do conjunto (13)
- 1What are the advantages of copper cable?Costs Less
More Flexible
Able to supply devices with power. - 2Mr Saqhil is building a housing estate in Darlaston how should he connect each house with an internet connection?He should use optical fibre to a exchange box within the estate and then copper cables to reach each house.
- 3What is the term for using Copper cable to reach a house instead of Optical fibres?Last Mile
Last Leg - 4What are the advantages of optical fibre?Increased bandwidth
Increased Upload/Download speeds
More reliable
- 5what are the disadvantages of optical fibres.Optical fibres require more protection around the cable compared to copper.
Cost - Cables are expensive to install but last longer than copper cables
optical fibres without protection are more fragile and fibres can become broken if bent. - 6How does Bluetooth work?Bluetooth devices uses radio waves to transmit and receive data.
- 7What are the Advantages of Bluetooth?Cheap
Convenient
Easy to use - 8What are the disadvantages of Bluetooth?Easy to hack into.
Prone to viruses - 9What is Microwave transmission?Microwave transmission is the transmission of information through electromagnetic waves.
- 10Give an example of a device that uses Infrared.Remote control
Security lights
Burglar alarms - 11How are infrared signals sent to a receiver?The transmitter sends out pulses of infrared light that represent specific binary codes.
- 12What does GSM stand for?GSM is an abbreviation for Global Systems for Mobile communications.
- 13What is 3G/4G?3G/4G is the mobile service provider’s way to transmit the internet to mobile devices when they are not connected to Wi-Fi.
Informações
- Descrição
- FlashCards sobre 1.4, criado por Josh `Cotterill em 28-04-2017.
- Criado por
- Josh `Cotterill
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