Multiple choice What is the total number of possible IPv4 IP addresses? 256 1,024 4,294,967,296 4,096 65,536 Reveal answer Fill a bubble to check yourself C Correct answer Explanation IPv4 defines IP addresses in a 32-bit format, which looks like 123.123.123.123. Each three-digit section can include a number from 0 to 255, which means the total number of IPv4 addresses available is 4,294,967,296 (256 x 256 x 256 x 256 or 2^32).