Tcp Ip Protocol Questions Medium
The four layers of the TCP/IP Protocol stack are:
1. Network Interface Layer: This layer is responsible for the physical transmission of data over the network. It deals with the hardware aspects such as network cards, cables, and network protocols. Its purpose is to establish and maintain a reliable connection between the devices on the network.
2. Internet Layer: This layer is responsible for addressing and routing packets across different networks. It uses IP (Internet Protocol) to assign unique addresses to devices and ensures that data packets are delivered to the correct destination. Its purpose is to enable communication between different networks and handle the fragmentation and reassembly of packets.
3. Transport Layer: This layer is responsible for the end-to-end delivery of data between devices. It uses protocols such as TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) to establish connections, manage data flow, and provide error detection and correction. Its purpose is to ensure reliable and efficient data transfer between applications running on different devices.
4. Application Layer: This layer is responsible for providing network services to applications and users. It includes protocols such as HTTP (Hypertext Transfer Protocol), FTP (File Transfer Protocol), SMTP (Simple Mail Transfer Protocol), and DNS (Domain Name System). Its purpose is to enable communication between applications running on different devices by providing standardized methods for data exchange and resource sharing.
Overall, the TCP/IP Protocol stack provides a hierarchical structure for organizing and managing network communication, from the physical transmission of data to the delivery of information between applications.