Flashcards
Networks - Protocols (Packets)
Cards in this deck (8)
- 1What are packets?Data being sent between networks. The data is split into equally sized packets
- 2What does a packet contain?It has a header (contains the control information). The control information holds the destination address, the source address and the packet number
- 3What is the payload in a packet?The payload might be part of an email, document, web page or streamed video
- 4What is a checksum number?A form of validation used to check the payload hasn't been corrupted during transit. The sending and receiving devices calculate a checksum value and if the value matches, the data has been received correctly
- 5What is packet switching?It is used by routers to direct data packets on the Internet and other IP networks
- 6What is the first step of packet switching?The sending device splits the data into numbered packets
- 7What is the second step of packet switching?The routers direct the packets along the best route depending on network traffic
- 8What is the third step of packet switching?The receiving device uses the packet numbers to reassemble them in the correct order
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- GCSE Computing (Computing Paper 1) Flashcards on Networks - Protocols (Packets), created by Jack Rogers on 17/04/2018.
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- Jack Rogers
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