IP Networking

Question 1

IP 4 Classes

Answer 1

A: Binary start: 0, Decimal range: 1-126
B: Binary Start 10, Decimal range: 128-191
C: Binary Start 110, Decimal range: 192-223
D: Binary Start 1110, Decimal Range: 224-239 (multicasting)
E: Binary Start 1111, Decimal Range: 240-255 (future use)

Question 2

RFC 1918

Answer 2

Defines internal IP address ranges that are not routed on in the internet.