O-LevelComputer ScienceData Representation2210/11 · May/June 2016 · Q24 Marks
Hexadecimal codes are used in MAC addresses.
- (a)State what is meant by the term MAC.[1]
- (b)Explain what the hexadecimal code in a MAC address represents.[3]
Mark scheme
Marking points from the official mark scheme (May/June 2016). The mark or mark type is shown in brackets.
- [1] (a) media access control
- [1] (b) hardware/physical address
- [1] (b) unique address/number associated (with network card in) a device/computer
- [1] (b) usually 48/64 bits (12/16 hex digits)
- [1] (b) first 6/8 digits = manufacturer code/ID of device (NIC)
- [1] (b) last 6/8 digits = serial number of device (NIC)
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