Cisco® CCNA Exam Cram Notes : TCP and UDP Frames

1. Networking Fundamentals

1. Explain role and function of network components

1.2 TCP and UDP Frames

TCP Frame: TCP frame fields: Total 20 bytes long.

  • Sequence Number
  • AcK number
  • Data offset
  • Reserved
  • Control bit
  • Window
  • Urgent Pointer
  • Options
  • Padding
  • Check Sum
  • Source port
  • Destination port

UDP Frame: UDP frame fields: Total 8 bytes long.

  • Length
  • Source port
  • Destination port
  • Check Sum






























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CCNA Cram Notes Contents
  • I. Networking Fundamentals
  • II. Cisco IOS
    • 1. Cisco Router Architecture
    • 2. Cisco Router (25xx series) and its interfaces
  • III. Routing Technologies
  • IV. LAN Switching Technologies
  • V. WAN Technologies
  • VI. Network Access
  • VII. IP connectivity and Services
  • VIII. Security Fundamentals
  • IX. Automation and Programmability
  • X. Appendix
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