A technician is checking the IP addresses of the devices on a network.
Identify the valid IPv4 address.
Mark scheme
- B 192.168.1.1 (1)
- The only correct answer is B. The correct answer is 192.168.1.1.
- A is not correct because it is an incomplete address with only three numbers, not four
- C is not correct because it is an address with five numbers, not four
- D is not correct because it contains 256, which is outside the range 0 to 255
Example answers and how they were marked
Full marks1/1
B 192.168.1.1
Why: Correct option (1): an IPv4 address is four numbers, each from 0 to 255, separated by dots.
No marks0/1
D 192.168.1.256
Why: Near miss: it has four numbers but 256 is outside the range 0 to 255 (mark scheme line D), so no mark.
No marks0/1
A 192.168.1
Why: It has only three numbers, so it is not a complete IPv4 address (mark scheme line A), so no mark.