Which full range of decimal values are valid in one octet of an IPv4 address?
- 0 through 31
- 1 through 64
- 0 through 128
- 0 through 255
- 1 through 256
Explanation: An octet can contain 8 bits. Each bit can be a 1 or a 0 because the binary system is used. To determine the number of values that can be represented by a specific number of bits, use the formula 2x where the x represents a specific number of bits. For 8 bits, 28 = 256. The numbers 0 through 255 are the valid values. Another way of looking at it is that the lowest value would be 8 0's or 00000000 (decimal 0). The highest value is 8 1's or 11111111 (decimal 255).
Related exam: Networking Devices and Initial Configuration Module 6.2.3 IPv4 Addressing Quiz
