It’s not Summer yet

Which old-style class of subnet would provide for 16,384 networks, with over 65,000 hosts per network?

A) Class A

B) Class B

C) Class C

D) Class D

E) Class is dismissed!

The answer: B) Class B

A class B subnet begins with an IP address of 128 through 191, and the mask of can support over sixteen thousand networks with 65,534 devices per subnet. This old-style class-based subnet scheme was changed to classless inter-domain routing (CIDR) in 1993, which removed these static classes with a more flexible CIDR-based notation.

Want to know more? Watch “Protocols and Addresses.”

The fundamental languages used over our computer networks are a standard set of protocols that are used around the world. In this video, you’ll learn about protocols and the set of standards associated with TCP/IP. You’ll also learn the essentials of TCP/IP and how subnetting can be used to build today’s modern networks.