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Computer Science · Oct / Nov 2023 · Paper 12 · Question 8

0478

As printed in the paper

Show the answer and mark scheme

  • 8(a)[4]

    The diagram demonstrates (One mark for each part of the diagram):

    Data is being sent from one device to another
    The data is being examined during transmission
    Packet sniffer is used
    Intercepted data is reported to a third-party during transmission …
    … and analysed for anything useful
    Connection hacked to spoof destination address

    e.g.

  • 8(b)[2]

    Encryption …
    … if the data is intercepted it will be meaningless (because they do not have the decryption key)
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