Identify what a router does with a data packet it receives.
Mark scheme
- B Sends it on to the next router (1)
- The only correct answer is B. The correct answer is sends it on to the next router.
- A is not correct because a packet is given its number by the sending computer before it is sent
- C is not correct because packets are put back into order by the receiving computer
- D is not correct because the original file is rebuilt by the receiving computer once all the packets arrive
Example answers and how they were marked
Full marks1/1
B Sends it on to the next router
Why: Selected the action a router performs on a packet it receives (1).
No marks0/1
D Rebuilds the original file
Why: A near miss: rebuilding the file is a packet switching action, but it is done by the receiving computer, not by a router.
No marks0/1
A Gives the packet a number
Why: Misconception: packets are numbered by the sending computer, so a router does not add a packet number.