2.5 OSI Networking Model

How are host-to-host connections managed?

A network host is a computer or other device connected to a computer network. A network host may offer information resources, services, and applications to users or other nodes on the network. A network host is a network node that is assigned a network address.

Which protocols are used to determine the IP address of a known MAC address?

Address Resolution Protocol, simply called as ARP is used to know Physical address / MAC address of your intended destination. Consider below topology : Consider Node A ( 192.168.1.1 ) want to ping Node D ( 192.168.1.2 ).

Which protocols are used by the Data Link layer?

In some networks, such as IEEE 802 local area networks, the data link layer is described in more detail with media access control (MAC) and logical link control (LLC) sublayers; this means that the IEEE 802.2 LLC protocol can be used with all of the IEEE 802 MAC layers, such as Ethernet, token ring, IEEE

How does the OSI model differ from the TCP/IP model? How are they similar?

The TCP/IP model uses four layers to perform the functions of the seven-layer OSI model. The network access layer is functionally equal to a combination of OSI physical and data link layers (1 and 2). The Internet layer performs the same functions as the OSI network layer (3).

What is the function of the Physical layer of the OSI model? What is the corresponding layer in the TCP/IP model?

The TCP/IP model uses four layers to perform the functions of the seven-layer OSI model. The network access layer is functionally equal to a combination of OSI physical and data link layers (1 and 2). The Internet layer performs the same functions as the OSI network layer (3).

How does the Presentation layer ensure that data presented to the Application layer is in a compatible form?

The application layer is a layer in the Open Systems Interconnection (OSI) seven-layer model and in the TCP/IP protocol suite. It consists of protocols that focus on process-to-process communication across an IP network and provides a firm communication interface and end-user services.