The Application Layer

6. Unlike our five-layer model, the OSI network model adds two more layers on top of the Application Layer. Select examples of these new layers below.

  • The presentation layer
  • The interconnection layer
  • The session layer
  • The compression layer


7. An example of something that operates at the application layer is:

  • UDP
  • TCP
  • A web browser
  • A router


8. What's the standard number for a TTL field?

  • 8
  • 16
  • 32
  • 64

9. Which part of the operating system does the application use to communicate the need to establish a TCP connection?

  • ARP message
  • Networking stack
  • The source port
  • The router


10. Which section of the TCP/IP Five-Layer Network Model contains the data the application wants to send?

  • The payload section of the Ethernet frame
  • The payload section of the IP Datagram
  • The payload of the TCP segment
  • The header of the Ethernet frame


Devendra Kumar

Project Management Apprentice at Google

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