Session (Layer 5) simply the role of the presentation layer act as a translator and convert the data from one format to another. If any application needs to access any resource that is available in remote system, it interacts with this layer. It also helps you to handles data compression and data encryption. In case of a connection loss this protocol may try to recover the connection. 2. An example of a session-layer protocol is the OSI protocol suite session-layer protocol, also known as X.225 or ISO 8327. Answer: i-d, ii-c, iii-b, iv-aeval(ez_write_tag([[728,90],'tutorialwing_com-box-4','ezslot_2',122,'0','0'])); Q. TCP/IP model does not have __ but OSI model has this layer. The main WWW protocol, Hypertext Transfer Protocol is described in the The HTTP Protocol. IP, routers) 4. This layer's primary function is the syntax and semantics of the data transmission. "thisisastring\0"). Some of the typical examples are GZIP, ASCII, JPEG, TIFF, etc. It relieves the application layer of concern regarding syntactical differences in data representation within the end-user systems. This will define how the content will appear to site visitors. Functions of Presentation Layer. This layer transforms data into the form which is accepted by the application. Consider an example in which spies exchange encoded messages. The presentation layer is responsible for the formatting and delivery of information to the application layer for further processing or display. The presentation layer works with the format and syntax of data to be sent or received from the application layer. It relieves the application layer of concern regarding syntactical differences in data representation within the end-user systems. For example, HyperText Transfer Protocol (HTTP), generally regarded as an application-layer protocol, has presentation-layer aspects such as the ability to identify character encoding for proper conversion, which is then done in the application layer. Not just that, this layer controls the single or multiple connections for each end-user application, and is responsible for directly communicating with both the presentation and the transport layers. The presentation layer handles the different encoding methods used by different machines .It manages the translation of data between the format of network requires and computer. As well as simple pieces of data, like strings, more complicated things are standardized in this layer. It is sometimes called the syntax layer. Likewise, this layer translates information from the application layer to the session layer. With TCP traffic, the connections are established at the transport layer. Examples of Presentation Layer Functions. The presentation layer performs the folowing functions: Communication with the application layer above. In the event that application logic is physically distributed to separate servers or processes, these separate physical deployment targets are referred to as tiers.It's possible, and quite common, to have an N-Layer … The manner of passing the messages back and forth is defined by the session layer, but how the messages are encoded (or the cipher the spies […] MAC, switches) 3. The Data Access Layer (DAL) created in the first tutorial cleanly separates the data access logic from the presentation logic. However, while the DAL cleanly separates the data access details from the presentation layer, it does not enforce any business rules that may apply. Transport (e.g. Network connection types 2. It is sometimes called the Syntax Layer. 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