How many sections does an IPv4 address contain?

How many sections does an IPv4 address contain?

• A. 4 sections
• B. 8 sections
• C. 16 sections
• D. 2 sections

Answer: (A)

IPv4 addresses are 32 bits long and are divided into four sections called octets. Each octet is 8 bits and is written as a decimal value from 0 to 255, with the four octets separated by dots (for example, 192.168.0.1). This four-part structure is what allows IPv4 to represent about 4.3 billion unique addresses. The other options would imply more or fewer sections: eight sections would be 64 bits (a layout like IPv6 uses eight groups of hexadecimal digits), sixteen sections would be 128 bits, and two sections would be only 16 bits—far too small for practical addressing. So the four-section format is the standard for IPv4.

IPv4 addresses are 32 bits long and are divided into four sections called octets. Each octet is 8 bits and is written as a decimal value from 0 to 255, with the four octets separated by dots (for example, 192.168.0.1). This four-part structure is what allows IPv4 to represent about 4.3 billion unique addresses. The other options would imply more or fewer sections: eight sections would be 64 bits (a layout like IPv6 uses eight groups of hexadecimal digits), sixteen sections would be 128 bits, and two sections would be only 16 bits—far too small for practical addressing. So the four-section format is the standard for IPv4.