IP address classes

Question 1

What is included in a Class A?

Answer 1

1 - 127 decimal range; 255.0.0.0 default subnet mask; 126 networks; 16, 777, 214 hosts p/network

Question 2

What is included in a Class B?

Answer 2

128 - 191 decimal range; 255.255.0.0 default subnet mask; 16, 382 networks; 65, 534 hosts p/network

Question 3

What is included in a Class C?

Answer 3

192 - 223 decimal range; 255.255.255.0 default subnet mask; 2,097, 150 networks; 254 hosts p/network

Question 4

What is included in a Class D?

Answer 4

224 - 239 decimal range; Used for Mutlicasting

Question 5

What is included in a Class E?

Answer 5

240 - 254 decimal range; Experimental