Which four layers comprise the TCP/IP model?

The TCP/IP model comprises four primary layers that structure how data is transmitted over a network. These layers are essential for enabling communication across diverse network devices and managing the interaction between software applications and hardware.

The correct choices reflect the layers of the TCP/IP model as follows:

• The Application layer is the topmost layer that includes protocols and services that applications use to communicate over the network. It defines the way applications interact with the network and includes protocols such as HTTP, FTP, and SMTP.

• The Transport layer is responsible for providing reliable or unreliable delivery of data, ensuring that data packets are properly sent and received. This layer manages flow control, segmentation, and error correction, utilizing protocols such as TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) to facilitate communication between devices.

• The Network layer handles the routing of data packets across different networks. It is responsible for logical addressing, which allows devices to identify each other, and takes care of packet forwarding through routers. This layer uses IP (Internet Protocol) for addressing and routing packets to their destination.

• The Network Access layer (often referred to as the Link layer) involves the methods and protocols used to deliver data physically over different types of networks, such as Ethernet or Wi-Fi. This