8031685
Description
Flashcards by Finn Muir-Cochrane, updated more than 1 year ago
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Created by Finn Muir-Cochrane
over 7 years ago
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| Question | Answer |
| What is the internet? | A collection of inter-connected networks |
| What does WAN stand for and briefly describe what it does | Wide Area Networks use resources supplied by third party carriers such as British Telecom. WAN also uses cables spread over large geographical areas |
| What is significant about every IP Address in the world? | Every single IP Address is different |
| with packet switching what is each file split up into? | Each file is split up into packets of 512 bytes |
| What will happen if any packets are not acknowledged after a set time? | All these packets will be resent by the sending computer |
| What 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 |
| What 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 |
| Name two network topologies that a LAN can be set up | Star network Mesh network |
| What is the purpose of a Router | A router sends packets on their way in their best direction |
| Whats the purpose of a Hub? | Used for printers, when a packet is recived it broadcasts the packet to all devices on the network |
| what does a Switch do? | Smart multi-plug adapter only sends packets to the intended recipient, using its MAC address |
| What is the role of the client? | The client sends requests to the server Waits for a reply Receives the reply |
| Name 2 advantages of a client-server network | Security 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 |
| Name 2 advantages of a Peer to Peer network | Easier to set up – computers can simply be cabled together Individual computers can share a printer, router, modem and other hardware |
| Name 2 disadvantages for P2P networks | Viruses 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 |
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