What Does Dotted Quad Mean?
A dotted quad is a decimal representation of an IPv4 address that is human readable. It is represented in the form xxx.xxx.xxx.xxx. The number in each quad represents one byte in a 32-bit address. Each quad ranges from 0 to 255. For example, 192.168.0.1 would be an example of a dotted quad.
Techopedia Explains Dotted Quad
IPv4 addresses are represented in groups of four decimals separated by dots, or a dotted quad. This is easier for people to read than representing IP addresses in hexadecimal or binary. All the quads represent a one part of a 32-bit IP address. Each quad is eight bits, ranging between 0 and 255, with 255 serving as a broadcast address. Subnet masks can also be represented using decimal notation, though typically only the first two or three quads are used, depending on the length of the mask
