TTMER10: Tests on a local area computer network

Control questions

You must give an answer to 5 questions at the beginning of the laboratory exercise. One wrong answer will make the mark given to the measuring with one grade worse. Two or more wrong answers will result a supplementary measuring!

  1. Review the seven layer model of the OSI!
  2. What is the role of the physical layer in the OSI model? Illustrate it with some elements of the network of the Department!
  3. What is the role of the data connection layer in the OSI model, and to what sublayers can it be thorn?
  4. What is the role of the network layer in the OSI model? Show a network building element, for which this layer is crucially important!
  5. What is the role of the presentation layer in the OSI model? What kind of anomaly could cause the incorrectness of this layer in case of TCP/IP protocol?
  6. Draw the result of the TDR-measurement of a 10 meter long RG58C/U typed cable section closed with tear on the end. Give an axle-segmentation to the time axle!
  7. Draw the result of the TDR-measurement of a 10 meter long RG58C/U typed cable section, which is shorted on the end. Give an axle-segmentation to the time axle!
  8. Draw the simple TDR measurement arrangement, which can be found at the measuring place. What is the principle of ht measurement?
  9. Draw the various LAN topologies!
  10. How is the segmentation of a computer out of operation is provided in case of a Star-Ring topology?
  11. What is the role of the HUB?
  12. Enumerate some of the cable types and connector applied in case of LANs
  13. What is the concept of LAN according to the IEEE?
  14. Review the Manchester coding!
  15. How does a line signal shape look like corresponding to the IEEE 802.3 standard?
  16. Draw shortly the IEEE 802.3, Ethernet II, and Ethernet SNAP frame structures!
  17. Which are the protocols applied at the Department, and which platforms (operation systems/applications) do apply them?