Google IT Support Professional:The Bits and Bytes of Computer Networking (Week 3) The Transport and Application Layers.

 

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★The Application Layer★

Q1.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.

1. The interconnection layer
2. The encryption layer
3. The presentation layer
4. The session layer
5. The compression layer

Q2.An example of something that operates at the application layer is:

1. A router
2. TCP
3. A web browser
4. UDP

Web browsers and server operate at the application layer.

Q3.What's the standard number for a TTL field?

1. 8 
2. 16 
3. 32 
4. 64

While this value can be set to anything from 0 to 255, 64 is the recommended standard.

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