220-801 · Question #568
An IP address of 10.10.1.180 would be considered part of which of the following address classes?
The correct answer is A. Class A. IPv4 address classes are determined by the value of the first octet. Class A covers addresses where the first octet ranges from 1 to 126. Since 10 falls within that range, 10.10.1.180 is a Class A address (and specifically a private Class A address per RFC 1918). Class B uses…
Question
An IP address of 10.10.1.180 would be considered part of which of the following address classes?
Options
- AClass A
- BClass B
- CClass C
- DClass D
How the community answered
(56 responses)- A91% (51)
- B2% (1)
- C2% (1)
- D5% (3)
Explanation
IPv4 address classes are determined by the value of the first octet. Class A covers addresses where the first octet ranges from 1 to 126. Since 10 falls within that range, 10.10.1.180 is a Class A address (and specifically a private Class A address per RFC 1918). Class B uses first octets 128–191, Class C uses 192–223, and Class D (224–239) is reserved for multicast.
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