Nt2799 Oral Exam Essay examples

3: Network Layer: The use of network layer is switching and routing technologies. It demonstrates logical path and virtual circuits for transferring data from one node to

Layer 3: Network - The way that the data will be sent to the recipient device is determined in this layer. Logical protocols, routing and addressing are handled here.

The fifth layer is the session layer this establishes a connection,this layer makes and sets up the connection using co ordinates and could terminate conversations links. the session layer produces services that make authentication after an interruption and not only that but it can reconnect.and as well as the transporting layer it can also have the TCP and the UDP can provide services for all most all applications.An application layer is an abstraction layer that specifies the shared protocols and interface methods used by hosts in a communications network. The application layer abstraction is used in both of the standard models of computer networking; the Internet Protocol Suite (TCP/IP) and the Open Systems Interconnection model (OSI model).Although both models use the same term for their respective highest level layer, the detailed definitions and purposes are different.In TCP/IP, the application layer contains the communications protocols and interface methods used in process-to-process communications

1. Application (in terms of cabling infrastructure): The application layer is the OSI layer closest to the end user, which means both the OSI application layer and the user interact directly with the software application. When determining resource availability, the application layer must decide whether sufficient network or the requested communication exists.. (OSI_model#Layer_7:_application_layer)

// - FTP/TCP flow from n0 to n3, starting at time 1.2 to time 1.35 sec.

This makes sure the data transferred is in the right order, error free and reliable from beginning to end. The Network Layer is the third layer of the model and its function is to interpret the network addresses into physical addresses and figure out how to direct them from the sender to the receiver. The next layer is the Data Link Layer, this is the second layer and it separates the data it receives from the Network layer into specific frames so they can be transmitted by the Physical layer. Frames are packages for moving data, they include the raw data, the sender and receiver’s addresses, as well as error checking and control information. This makes sure the frames are delivered to their destination without any problems. The physical layer is the first layer and the lowest, the protocols at this layer recognize and receive the frames from the Data Link layer. They also monitor data error and set data transmission

This created physical connection between PC’s and the network line. Connected data’s are transporting data’s through the network. Cable is a medium through which information usually moves to one network to another network.

Which layer of the OSI reference model handles logical addressing (IP addresses) and routing traffic?

The _________ is a term for the device or unit that receives the information transfer.

Which of the following is the unit of measurement by which a hub's bandwidth is usually

The application layer: this layer allows different applications to communicate with each other’s. In order to exchange different data over the network connection, the protocols included in this layer set up the standards such as DNS, HTTP, FTP. The data coded in this layer will be encapsulated to transport layer for further packing.

Ethernet is a network technology for local area networks (LAN). "Ethernet uses a bus or star topology and supports data transfer rates of 10Mbps."(Webopedia, 2007). Ethernet is the most popular architecture used today. One advantage to Ethernet is the ease of installation. Ethernet costs less than other network architectures and is easy to use. Ethernet supports many different kinds of networking media, which makes it more popular

Datacenter Ethernet: Data center Ethernet has got no limit of distance, it has millions of mac addresses available. This follows rapid spanning tree mechanism and the path for traffic is engineered. Service is provided by a service level agreement

Figure 4.1.1 - Screenshot of the server side after transmission from sever H10 to host H1

the network switches, the standard network cable (fiber and UTP). Wireless connectivity (Wi-fi) shall also be used, where ever needed.