Types of OSI model-
(1) Application Layer: (i) Gives detail real work which is done in application. (ii) implements operation of file system.
(2) Presentation Layer : (i)Gives detail information how floating-point number can be exchange between host with different formats. (ii) Gives detail how syntax of data is transferred.
(3) Session Layer: (i) Gives detail the Organization of data sequences larger than the packets manage by lower layers. (ii) Gives detail how request and reply packets are paired in a remote procedure call.
(4) Transport Layer: (i) Tells about the quality and nature of a data delivery. (ii) Tells about how retransmissions will be used to ensure data delivery.
(5) Network Layer: (i) Gives detail how a series of exchanges over various data links can deliver data between any two nodes in a network. (ii) Defines the routing and addressing structure of the internet.
(6) Data Link Layer: (i) Gives detail the logical organization of data bits transmitted on a particular medium. (ii) Defines the addressing , framing and check summing of Ethernet packets.
(7) Physical Layer: (i ) Defines the size of Ethernet coaxial cable , the type of BNC(Bayonet Neill-Concelman) connector used and the termination method. (ii) Gives information of physical properties of the various communication media, the electronic properties and interpretation of the exchange signals.