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!
- Review the seven layer model of the OSI!
- What is the role of the physical layer in the OSI model?
Illustrate it with some elements of the network of the Department!
- What is the role of the data connection layer in the OSI model,
and to what sublayers can it be thorn?
- What is the role of the network layer in the OSI model?
Show a network building element, for which this layer is crucially important!
- 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?
- 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!
- 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!
- Draw the simple TDR measurement arrangement, which can be found at the measuring
place. What is the principle of ht measurement?
- Draw the various LAN topologies!
- How is the segmentation of a computer out of operation is provided in case of a
Star-Ring topology?
- What is the role of the HUB?
- Enumerate some of the cable types and connector applied in case of LANs
- What is the concept of LAN according to the IEEE?
- Review the Manchester coding!
- How does a line signal shape look like corresponding to the IEEE 802.3 standard?
- Draw shortly the IEEE 802.3, Ethernet II, and Ethernet SNAP frame structures!
- Which are the protocols applied at the Department, and which platforms
(operation systems/applications) do apply them?