OCR computing NETWORKS GCSE
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10 Terms
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Bandwidth
Bandwidth is the amount of data that can be transmitted in a given period of time
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Router (purpose)
To transmit data between at least two different networks
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Web server role
Control access to a centralised resource (definition of a server)
Stores content for web pages
Stores layout data for web pages
Receives and processes requests for web pages
Stores content for web pages
Stores layout data for web pages
Receives and processes requests for web pages
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Web client role
Sends requests for web pages
Sends DNS requests for IP addresses
Displays the results of web requests
Sends DNS requests for IP addresses
Displays the results of web requests
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protocol
A set of rules that govern how devices communicate
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What is the protocol that is used to transmit data between different networks
TCP/IP
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HTTPS?
Transmits data using encryption
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MAC address
A MAC address is permanently assigned to a device on the network
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IP address
An IP address may change when the device joins a different network
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What is the purpose of **POP3**?
to retrieve emails. They are deleted once downloaded from the server
Note 
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