Layer 6 The Presentation Layer

1
Layer 6 The Presentation Layer

• Shawn Shuoh-Ren Tsai
• Cisco Academy Training Center
• David Ta-Wei Shih
• CGUIC

2
Presentation layer

• The presentation layer is concerned with the
  format and representation of data
• this layer can translate between different data
  formats.
• the presentation layer provides three main
  functions. These functions are
• data formatting (presentation)
• data encryption
• data compression

3
Standards

• Graphics / Visual Images
• PICT, TIFF, JPEG
• Sound / Vedio
• MPEG, MIDI, Quick Time
• Text
• ASCII, EBCDIC

4
File formats

• Text formats
• Binary formats
• Markup Languages