Transmission data rate is decided by _Įxplanation: Physical layer is a layer 1 device which deals with network cables or the standards in use like connectors, pins, electric current used etc. It is the top-most layer in both the TCP/IP and the OSI model.ġ0. Application layer provides the interface between applications and the network. Which layer provides the services to user?Įxplanation: In networking, a user mainly interacts with application layer to create and send information to other computer or network. Some examples of port numbers are port 20 which is used for FTP data, port 22 which is used for SSH remote login ,and port 23 which is used for TELNET.ĩ. Which address is used to identify a process on a host by the transport layer?Įxplanation: A port number is a way to identify a specific process to which an Internet or other network message is to be forwarded when it arrives at a server. It uses ports for the implementation of process-to-process delivery.Ĩ. The transport layer is responsible for segmentation of the data. The protocols used in Transport layer is TCP and UDP. Which layer is responsible for process to process delivery in a general network model?Įxplanation: The role of Transport layer (Layer 4) is to establish a logical end to end connection between two systems in a network. TCP/IP was developed with the intention to create a model for the Internet while OSI was intended to be a general network model.ħ. TCP/IP model was developed _ the OSI model.Įxplanation: Several TCP/IP prototypes were developed at multiple research centers between 19, whereas OSI reference model was developed in the year 1984. In TCP/IP, the addresses are more focused on the internet implementation of these addresses.Ħ. All the addressing schemes, that is physical (MAC) and logical address, port address and specific address are employed in both TCP/IP model and OSI model. Which address is used on the internet for employing the TCP/IP protocols?Įxplanation: The physical, logical, port and specific addresses are used in TCP/IP protocol. The transport layer links these layers by segmenting and rearranging the data. Which layer is used to link the network support layers and user support layers?Įxplanation: Physical, data link and network layers are network support layers and session, presentation and application layers are user support layers. The functions of Presentation and Session layer in the OSI model are handled by the transport layer itself in TCP/IP.Ĥ. TCP/IP model does not have _ layer but OSI model have this layer.Įxplanation: In OSI reference model, there are two layers which are not present in TCP/IP model. Each layer uses a protocol to perform its designated function, for example, the data link layer uses error detection protocols for error control functions.ģ. The number of layers in ISO OSI reference model is _Įxplanation: In OSI reference model, there are 7 layers namely Application, Presentation, Session, Transport, Network, Data Link and Physical layer. it can be modified to design any kind of computer network.Ģ. It is recognized by the ISO as the generalized model for computer network i.e. OSI model provides a structured plan on how applications communicate over a network, which also helps us to have a structured plan for troubleshooting. Explanation: OSI is the abbreviation for Open System Interconnection.
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