Class B IPv4 Address Basics | Generated by AI
In the context of IPv4 addressing, addresses are divided into different classes (A, B, C, D, E) based on the value of the first few bits in the first octet (the first 8 bits of the IP address).
B Class IP Addresses:
- B class IP addresses are designed for medium-sized networks.
- The first octet of a B class IP address always starts with the binary pattern
10. - This means the first two bits of the first octet are fixed as
10in binary.
Breakdown:
- First octet range (in decimal): 128 to 191
- Binary representation of the first octet: Always starts with
10followed by 6 more bits (e.g.,10xxxxxx).
Example:
- 128.0.0.0 to 191.255.255.255 are B class addresses.
- The first two bits of 128 in binary are
10.
Why is this important?
- The first two bits
10identify the address as a B class address, which determines the default subnet mask and the number of hosts and networks available.
So, the correct answer is 10.