The OSI Presentation Layer

By Stephen Bucaro

At the presentaion layer, layer six of the OSI model,source and destination applications communicate on a format for exchanging data. The sending computer may convert text to a generic format ( ASCII) for transmission over a network. The receiveing computer converts the ASCII to the format required by the destination application.

Data Transformation Services Provided by the Presentation Layer

• Text format conversions
• Binary and graphics format conversions
• Compression and expansion
• Encryption and decryption

When you think of the Application layer, keep in mind that the OSI is only a model. Actual network operating systems may handle the data conversion functions at the application and session layers.

More Networking Protocols and Standards:
• Understanding IP Routing
• IPv6 Prefix Length Notation
• TCP/IP Protocol Suite
• Active Directory : How Objects Are Stored and Identified
• What is PPP, PPPoA and PPPoE?
• TCP/IP Features
• Looking at the OSI 7 Layer Reference Model
• T-Carrier
• What Are Private IP Addresses?
• Internet Security and VPN Network Design

RSS Feed

 Follow @Stephen Bucaro

 Basics and Certification
 Technologies and Media
 Protocols and Standards
 Troubleshooting and Support
 Network Security
 Cisco Certification