To solve this question, the user needs to know the definition of a router and understand the concept of multiple protocols.
A router is a networking device that forwards data packets between computer networks. It uses headers and forwarding tables to determine the best path for forwarding the packets.
Multiple protocols refer to the ability of a router to handle different network layer protocols simultaneously.
Now, let's go through each option and explain why it is right or wrong:
A. Ethernet: This option is incorrect. Ethernet is a family of computer networking technologies commonly used in local area networks (LANs). Although routers may use Ethernet to connect to devices, Ethernet is not a term used to describe routers.
B. Internet: This option is incorrect. The Internet is a global network of networks that use the Internet protocol suite (TCP/IP) to link devices worldwide. Although routers are used to forward data packets on the Internet, the term Internet is not used to describe routers.
C. Multiprotocol: This option is correct. A router that can handle multiple protocols is called a multiprotocol router. It is designed to handle different network layer protocols simultaneously, such as IP, IPX, and AppleTalk.
D. None of the above: This option is incorrect. The correct answer is C, as explained above.
The answer is: C