An IPv4 (Internet Protocol version 4) address is 32 bits long. These 32 bits are divided into four groups of 8 bits, called octets. Each octet can have a value from 0 to 255, so an IPv4 address is commonly written in dotted-decimal notation, such as 192.168.1.1. IPv4 provides approximately 4.3 billion (2³²) possible unique addresses. It is widely used to identify devices and facilitate communication between computers and other devices on networks.
How long is an IPv4?
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Question context
This question is part of 🌐 Networking within the broader 💾 Computer Science subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.