4. The network layer protocol for internet is __________ c) hypertext transfer protocol d) file transfer protocolb) internet protocol a) ethernet

The network layer protocol for the internet is the Internet Protocol (IP).

Explanation:

1. Understanding Network Layers:

   • The OSI (Open Systems Interconnection) model has multiple layers, and the network layer is responsible for routing packets of data.

2. Identifying Protocols:

   • Ethernet: A protocol used in the data link layer for local area networks (LANs).
   • Hypertext Transfer Protocol (HTTP): An application layer protocol used for transferring hypertext (web pages).
   • File Transfer Protocol (FTP): Also an application layer protocol used for transferring files over the internet.
   • Internet Protocol (IP): Operates at the network layer and is responsible for addressing and routing packets across networks.

Final Answer:

The correct answer is b) Internet Protocol.