What is the address space of IPv4?
Understand the Problem
The question is asking us to identify the address space of IPv4, which relates to the total number of unique addresses available in the IPv4 protocol. This requires knowing that IPv4 uses 32 bits for addressing.
Answer
32-bit field; 4,294,967,296 unique addresses.
The IPv4 address space is a 32-bit field, which provides 4,294,967,296 unique addresses.
Answer for screen readers
The IPv4 address space is a 32-bit field, which provides 4,294,967,296 unique addresses.
More Information
IPv4 addresses are displayed in a dotted decimal notation and consist of four octets, making it easy to interpret the binary address.
Tips
A common mistake is confusing IPv4 with IPv6. Remember, IPv4 uses a 32-bit format, while IPv6 uses a 128-bit format.
Sources
- Understanding IP Addressing and CIDR Charts - RIPE NCC - ripe.net
- IPv4 - Wikipedia - en.wikipedia.org
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