ch5 valid ntwk numbers of class a,b,c
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- Class A: first octet range:
- 1 to 126
- Class A: Valid network numbers:
- 1.0.0.0 to 126.0.0.0
- Class A: Total # for this class of network:
- 2 to the 7th - 2 (126)
- Class A: Number of Hosts per network:
- 2 to the 24th -2 (16,777,214)
- Class B: first octet range:
- 128-191
- Class B: valid network numbers:
- 128.0.0.0 to 191.255.0.0
- Class B: total # for this class of network:
- 2 to the 14th (16,384)
- Class B: Number of hosts per network:
- 2 to the 16th -2 (65,534)
- Class C: first octet range:
- 192 to 223
- Class C: valid network numbers:
- 192.0.0.0 to 223.255.255.0
- Class C: number of hosts per network:
- 2 to the 8th -2 (254)