Flashcards
Wired and Wireless Networks
Flashcards do conjunto (16)
- 1What is the internet?A collection of inter-connected networks
- 2What does WAN stand for and briefly describe what it doesWide Area Networks use resources supplied by third party carriers such as British Telecom. WAN also uses cables spread over large geographical areas
- 3What is significant about every IP Address in the world?Every single IP Address is different
- 4with packet switching what is each file split up into?Each file is split up into packets of 512 bytes
- 5What will happen if any packets are not acknowledged after a set time?All these packets will be resent by the sending computer
- 6What does DNS stand for and what is its purpose?A Domain Name System translates the web address such as 'Google.co.uk' into an IP address
- 7What does LAN stand and where does is operate?Local Area Networks operate on a single site such as a school or small business using their own cabling
- 8Name two network topologies that a LAN can be set upStar network
Mesh network - 9What is the purpose of a RouterA router sends packets on their way in their best direction
- 10Whats the purpose of a Hub?Used for printers, when a packet is recived it broadcasts the packet to all devices on the network
- 11what does a Switch do?Smart multi-plug adapter only sends packets to the intended recipient, using its MAC address
- 12What is the role of the client?The client sends requests to the server
Waits for a reply
Receives the reply - 13Name 2 advantages of a client-server networkSecurity is better because data is held in one location rather than all over the organisation
Users can log in from any computer on the network and access their data - 14Name 2 advantages of a Peer to Peer networkEasier to set up – computers can simply be cabled together
Individual computers can share a printer, router, modem and other hardware - 15Name 2 disadvantages for P2P networksViruses and malware are easily transferred over this type of network
Data recovery and backup is not done centrally, so each computer has to have its own backup system - 16—
Informações
- Descrição
- O usuário eliminou as informações de disciplina FlashCards sobre Wired and Wireless Networks , criado por Usuário eliminado em 20-11-2017.
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- Usuário eliminado · nov 2017
- Atualizado
- 20 nov 2017
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- Criado por Finn Muir-Cochrane · 9 mar 2017
- Copiado por Mr Williams · 20 nov 2017
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