OSI Essentials

Short Answer Questions

1. What layer determines the format used to exchange data?

2. How many layers does the OSI layer contain?

3. What is the 4th layer of the OSI?

4. What is the 3rd layer of the OSI?

5. What is the 1st layer of the OSI?

6. What is the 2nd layer of the OSI?

7. What is the 7th layer of the OSI?

8. What is the 6th layer of the OSI?

9. What layer is used to allow an application to access network services such as accessing remote files and databases, accessing remote printers, and e-mail?

10. What layer is responsible for determining the route to transmit data?

11. The Data Link layer is made up of two sublayers, one is the Logical Link Control (LLC) and the other is _ _ _ sublayer.

12. What layer establishes communications between processes running on different computers?

13. What layer handles raw bit-stream data that is transmitted over the network?

14. The Data Link layer is responsible for the _____ ______ transfer of frames from one computer to the next using the Physical layer.

15. What IEEE specification relates to the Logical Link Control layer?

16. Which layer of the OSI model would hold devices that communicate with a network adapter but also packages bits to frames?

17. Which sublayer of the Data Link layer of the OSI Model will manage communication for this layer and will define certain "interface points" for this layer?

18. In which layer of the OSI model would you find the network redirector?

19. Which layers of the OSI model would use the services of a gateway?

20. In which layers of the OSI model does a "brouter" work in?

21. What does OSI stand for?

22. Data is compressed and decompressed at the Presentation layer to make optimal use of its channel?
True (T) or False (F)

23. When the Sessions layer receives the data, a dialog is offered and set for Full-Duplex communications and passes the data to the ________ layer.

24. The Transport layer packages the data as segments and resolves the destination computer name to its IP address. It then places checksums information to each segment for error checking to ensure that Chat applications at both ends of the internetwork can reliably communicate.

The segments are then passed to the data link layer. True (T) or False (F)

25. The Data Link layer receives the datagrams from the Network layer and packages the datagrams into frames.
It passes these frames to the __________ layer.

26. The Physical layer packages the data as ____ and sends it from the NIC across the transmission media.

27. What layer resolves the IP address of the destination computer to its MAC address.

28. At what layer will the data will be translated, decrypted, and decompressed if need be and passed to the Application layer?

29. The Application layer passes the data to the user's application.

True (T) or False (F) ?

30. The Application layer can only communicate with the network ________ and the Presentation layer.