A wireless network has a fixed amount of bandwidth.
State what happens to the bandwidth available to each device as more devices connect to the network.
Mark scheme
Award one mark for:
- It is shared between more devices, so each device gets less (bandwidth) (1)
Allow 'the bandwidth is divided/split between the devices'.
Allow 'there is less bandwidth for each device'.
Do not accept 'the speed decreases' / 'the connection slows down' on its own.
Do not accept 'the bandwidth decreases' unless it refers to the bandwidth available to each device.
Do not accept 'the bandwidth increases'.
Example answers and how they were marked
It is shared between more devices, so each device gets less bandwidth.
Why: States that the bandwidth is shared between more devices and so each device gets less (1).
The speed for each device decreases.
Why: Describes speed rather than bandwidth; this near-miss is ruled out by the 'Do not accept' line.
The bandwidth increases because more devices are connected.
Why: Contradicts the correct answer; bandwidth is shared between the devices, it does not increase, so no mark.