LAB 3.1: Network Reference Models
3.1.1:
The devices would not sell as much because most people prefer the Wi-Fi alliance. Having devices with their own protocol and standards would limit their market value. The standards would be the same for all across the board.
3.1.2:
Transport, The communication function that is useful to applications in general and useful to many of the applications themselves.
3.1.3:
An internetwork is a collection of individual networks, connected by intermediate networking devices, that functions as a single large network. Internetworking refers to the industry, products, and procedures that meet the challenge of creating and administering internetworks.
3.1.4:
There would be no focused standards because all the entities would try to control their network. It would also make it harder to use communication throughout a network. The OSI set standards; it must be global Standard across the board and must include any and all computers.
LAB 3.2: The OSI Reference Model
3.2.1:
Layer 1: physical layer - The physical layer defines electrical and physical specifications for devices. In particular, it defines the relationship between a device and a transmission medium, such as a copper or fiber optical cable. This includes the layout of pins, voltages, line impedance, cable specifications, signal timing, hubs, repeaters, network adapters, host bus adapters (HBA used in storage area networks) and more.
Layer 2: data link layer - The data link layer provides the functional and procedural means to transfer data between network entities and to detect and possibly correct errors that may occur in the physical layer.
Layer 3: network layer - The network layer provides the functional and procedural means of transferring variable length data sequences from a source host on one network to a destination host on a different network while maintaining the quality of service requested by the transport layer. The...