Packet switching

Description

GCSE Computing Flashcards on Packet switching, created by ongebongoewewqi uwuvuvugwegwegwe on 05/11/2018.
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Flashcards by ongebongoewewqi uwuvuvugwegwegwe, updated more than 1 year ago
ongebongoewewqi uwuvuvugwegwegwe
Created by ongebongoewewqi uwuvuvugwegwegwe about 6 years ago
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Resource summary

Question Answer
Do networks transfer and receive alot of data? Ye
What is packet switching? The break down of data, emails or files to it then to be reassembled at the target location.
What is the packet assigned? It is assigned the header which contains the ip address of the network and device its being sent to.
What does it also contain? It also contains the ip address of the network it was sent from.
In addition to these the header also contains? The total number of packets and the order of the packets.
Why would the computer request it again? If the packets get lost, the computer will request the packet to be sent again.
What happens if it never arrives? The router deletes the packets.
What is Header Checksum? Protects the header of the data from data corruption.
What is fragment offset? The fragment offset field is measured in units of eight-byte blocks. It is 13 bits long and specifies the offset of a particular fragment relative to the beginning of the original unfragmented IP datagram. The first fragment has an offset of zero.
What does padding do? Fills up unsused portions of a data structure.
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