Q: There are 4 bytes in an IPv4 address. What is the highest possible decimal value for one byte?
or
Q: An IPv4 address consists of 4 bytes. What is the maximum decimal value that a single byte can have?
Answers
- 256
- 512
- 128
- 255
Explanation: In an IPv4 address, each byte is represented by 8 bits, and the highest possible decimal value for one byte is 255. In binary, the representation of 255 is ‘11111111’. This is since each bit that makes up the byte may either have the value 1 or 0, and when all of the bits are set to 1, the byte’s value is converted to the decimal number 255. Because of this, the largest decimal value that may be assigned to a single byte of an IPv4 address is 255.
