A wireless network can use the 2.4 GHz or 5 GHz frequency band.
Identify the advantage of using the 5 GHz band instead of the 2.4 GHz band.
Mark scheme
- B Higher data transfer speed (1)
- The only correct answer is B. The correct answer is higher data transfer speed.
- A is not correct because the 2.4 GHz band has the greater range
- C is not correct because the 2.4 GHz band passes through walls more easily
- D is not correct because the 5 GHz band does not use less bandwidth
Example answers and how they were marked
Full marks1/1
B Higher data transfer speed
Why: Correct advantage: 5 GHz gives higher data transfer rates (1).
No marks0/1
A Greater range
Why: Greater range is a feature of the 2.4 GHz band, not an advantage of 5 GHz; no mark.
No marks0/1
C More able to pass through walls
Why: 5 GHz signals are less able to pass through walls than 2.4 GHz signals; no mark.