FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Internet layer pack data into data packets known as IP datagrams, which contain source and destination address (logical address or IP address) information that is used to forward the datagrams between hosts and across networks. The Internet layer is also responsible for routing of IP datagrams.

Detailed explanation-2: -There are four layers of the TCP/IP model: network access, internet, transport, and application. Used together, these layers are a suite of protocols. The TCP/IP model passes data through these layers in a particular order when a user sends information, and then again in reverse order when the data is received.

Detailed explanation-3: -Typical examples of layer 4 are the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP).

Detailed explanation-4: -The transport layer is responsible for maintaining end-to-end communications across the network. TCP handles communications between hosts and provides flow control, multiplexing and reliability.

Detailed explanation-5: -In TCP/IP model, there are mainly four layers: application, network access, internet, and transport. Out of these four layers, the Internet layers route the message between the sender and receiver in an internetwork, that is, the internet layer performs the routing of the messages and it is the correct answer.