IPv4 Addressing Flashcards
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9 Terms
How many bits is an IPv4 address?
→ 32 bits
What is each of the 4 numbers in an IP address called?
→ An octet (8 bits)
What's the range of values in a single octet, and why?
→ 0–255 (8 bits = 256 values)
The part of an IP that identifies which network
→ Network portion
The part of an IP that identifies the specific device
→ Host portion
What tells you which part of an IP is network vs host?
→ The subnet mask
In a subnet mask, 255 means ___ and 0 means ___
→ 255 = network portion, 0 = host portion
What is /24 in CIDR notation equal to as a subnet mask?
→ 255.255.255.0
What does the number after the slash (/24) represent?
→ How many bits are the network portion