IPv4 and IPv6 are two versions of IP addressing used on the internet.
State the number of bits in an IPv4 address.
Mark scheme
Award one mark for:
- 32 (1)
Allow 4 × 8 / 2^5 (working that gives 32)
Do not accept 4 (the number of sections in an IPv4 address), 8 (the number of bits in each section) or 128 (the number of bits in an IPv6 address)
Example answers and how they were marked
Full marks1/1
32
Why: Gives the number of bits in an IPv4 address (1).
No marks0/1
4
Why: Gives the number of sections in an IPv4 address, not the number of bits, so no mark (0).
No marks0/1
128
Why: 128 is the number of bits in an IPv6 address, not an IPv4 address, so no mark (0).