Index

COMPUTER NETWORKING

  1. INTRO
    1. TCP/IP Five Layer Model
    2. NETWORKING DEVICES
    3. PHYSICAL LAYER
    4. DATALINK LAYER
  2. NETWORK LAYER
    1. IP
    2. SUBNET
    3. ROUTING
  3. TRANSPORT & APPLICATION LAYER
    1. TRANSPORT LAYER
    2. CONTROL FLAGS
    3. APPLICATION LAYER
    4. ALL TOGETHER
  4. NETWORK SERVICES
    1. DNS - NAMES RESOLUTION
    2. DHCP
    3. NAT
    4. VPN
  5. CONNECTING TO INTERNET
    1. BROADBAND
    2. WAN
    3. WIRELESS NETWORKING
  6. TROUBLESHOOTING
  7. MORE ABOUT
    1. DNS
    2. IPv6
    3. CLOUD

APPLICATION LAYER

Application Layer : Allows applications to communicate in a way they understand.

payload message

Web traffic : HTTP

OSI : Open Systems Interconnection Model
Seven Layers :
→ Application
→ Presentation ←
→ Session←
→ Transport
→ Network
→ Datalink
→ Physical

SESSION LAYER : Facilitating the communication between actual applications and the transport layer.

PRESENTATION LAYER :Responsible for making sure that the unencapsulated application layer data is able to be understood by the application in recieving end.