Layer 5 - Session Layer: ask the devices to enter valid login credentials, so as to maintain a secure data connection, Provides authentication, Provides authorization, determines whether the device has permission to access those data elements or not, adds various checkpoints with the data to synchronize data at the sender's and receiver's side, Layer 6 - Presentation Layer: transforms data from one form to the other, transforms the high-level user language data to the equivalent low-level machine-level language, Some of the standards used by this layer for translation are ASCII, EBCDIC, converts a plain text into cypher text for security, converts a ciphertext into plain text, reduces the number of bits in the data, Layer 7 - Application Layer: mainly facilitates the file transfer between two network devices with the help of FTP, Web surfing is possible only in this layer, Electronic-mails can be sent from one device to another on the network on this layer, facilitates the remote host login in the network,

OSI Model - Example sort (Layers 5-7)

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