Which Internet Protocol version is 100.0.0.256?
Not a valid IP address
IPv2
IPv4
IPv6
The correct answer and explanation is :
The correct answer is “Not a valid IP address”.
Explanation:
To understand why, let’s break down what an IP address is and why 100.0.0.256 isn’t valid.
An IP address is a unique identifier for devices on a network. It is used in two main versions:
- IPv4 (Internet Protocol version 4): This is the most commonly used version of IP today. IPv4 addresses consist of four octets (8-bit groups), written as four decimal numbers separated by periods (dots). Each octet can range from 0 to 255, as it is represented in 8 bits, which gives 256 possible values (0-255).
- IPv6 (Internet Protocol version 6): This newer version of IP was created to replace IPv4 due to the limited number of possible IPv4 addresses. IPv6 addresses are 128 bits long and are written in hexadecimal notation, divided into eight groups of four characters.
Why 100.0.0.256 isn’t valid:
In the IP address 100.0.0.256, the last octet is 256, which is out of the valid range for an IPv4 address. In an IPv4 address, each octet must have a value between 0 and 255, since each octet represents an 8-bit number.
- 256 exceeds the maximum value that can be represented by 8 bits (which is 255).
Since 100.0.0.256 exceeds the acceptable range for an octet, it is not a valid IPv4 address. It is not valid under IPv6 either, as IPv6 addresses do not follow the same structure and don’t include decimal numbers divided by periods.
Therefore, 100.0.0.256 is not a valid IP address in any version of IP.