Which class network is used for a collection of a small number of networks with a large number of nodes? A. Class A B. Class B C. Class C D. All of the above E. None of the above

The correct answer is: Class A.

Class A networks are used for a collection of a small number of networks with a large number of nodes. They have a first octet that ranges from 1 to 127, and a subnet mask of 255.0.0.0. This means that they can have up to 16,777,216 hosts on each network.

Class B networks are used for a collection of a medium number of networks with a medium number of nodes. They have a first octet that ranges from 128 to 191, and a subnet mask of 255.255.0.0. This means that they can have up to 65,536 hosts on each network.

Class C networks are used for a collection of a large number of networks with a small number of nodes. They have a first octet that ranges from 192 to 223, and a subnet mask of 255.255.255.0. This means that they can have up to 256 hosts on each network.

All of the above is incorrect because Class A networks are not used for a collection of a large number of networks with a small number of nodes.