Which of the following is not a TCP/IP layer?

निम्नलिखित में से कौन सी TCP/IP परत नहीं है?

Application Layer

Transport Layer

Network Layer

Data Link Layer

Explanation:

The TCP/IP model (also known as the Internet Protocol Suite) consists of four layers:

Application Layer: This is the topmost layer where end-user applications interact with the network. It includes protocols like HTTP, FTP, SMTP, and DNS.
Transport Layer: This layer ensures reliable data transmission between devices. It includes protocols like TCP (Transmission Control Protocol) and UDP (User Datagram Protocol).
Network Layer: This layer is responsible for routing data across different networks. It includes protocols like IP (Internet Protocol), and it handles logical addressing and routing.
Link Layer (sometimes referred to as the Network Interface Layer): This is responsible for the physical transmission of data over a medium. It includes technologies like Ethernet and Wi-Fi.