what happens at each layer of OSI?

The 7 Layers of the OSI Model # Layer Function Common Protocols / Tools 7 Application Where users and software interact HTTP, HTTPS, DNS, SSH, SMTP, FTP, SNMP, etc. 6 Presentation Translates, encrypts, and formats data SSL/TLS, MIME, JSON, ASCII, JPEG 5 Session Starts, manages, and ends sessions TCP session, NetBIOS,