What notation is commonly used for IP Addresses?

The notation commonly used for IP addresses is Dotted-Quad Notation. This format represents an IP address as four decimal numbers, each ranging from 0 to 255, separated by periods. For example, an IP address might look like 192.168.1.1. This method is user-friendly and simplifies understanding and working with IP addresses, which are originally expressed in binary.

In contrast, CIDR Notation is another format that includes the base IP address followed by a slash and a number indicating the size of the subnet, such as 192.168.1.0/24. While important for specifying network ranges, it’s not the direct representation of standard IP addresses as Dotted-Quad Notation is.

Binary Notation represents IP addresses in the binary format, which can be more difficult for humans to read or understand. While it's fundamental at a technical level for how devices communicate, it is not the commonly used notation for practical purposes.

The choice stating that this notation is obsolete suggests that Dotted-Quad Notation is no longer in use, which is incorrect as it remains the standard notation for denoting IPv4 addresses in many contexts today. Thus, Dotted-Quad Notation is clearly the appropriate choice when discussing