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How many bits are in an IPv4 address?

A) 16

B) 24

C) 32

D) 64

E) Bits of what?

The answer: C) 32

An IPv4 address consists of four eight-bit octets, for a total of 32 bits. IPv6 expands on this address space, bringing the total to 128 bits.

Want to know more? Watch “IPv4 and IPv6.”

Although IPv4 has been the most popular protocol in the world, IPv6 has now become a standard installation in Windows 7. In this video, you’ll learn how to identify IPv4 addresses and IPv6 addresses, and how IPv6 addresses can be abbreviated to save space and make them more readable.