EL5363 2008Midterm1 - EL5363/EE136 Midterm Exam 1(A Name ID...

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EL5363/EE136 Midterm Exam 1 (A) Name: ID: Important Notes (Must Read): You must write your answers of Q1-Q30 in the table on this sheet. You must write your name & ID on this sheet and return it together with the blue book 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C A A B B C D B B D A C C 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 B A C B B C A A D C A or B B B B A Q1-Q30: 2 points/each, there is only one best choice for each question. 1. Ring topology has better resilience than star topology. A. True B. False 2. Tree topology is very good for wide area networks. A. True B. False 3. What is the most serious problem of using fully connected topology in WAN? A. Bad resilience B. Low speed C. Poor scalability D. affected by failures 4. In circuit switching, a circuit must be established before users start to exchange data. A. True B. False 5. Which of the following features is NOT shared by circuit switching and virtual packet circuit switching? A. Using packet as data unit B. No packet out-of-order C. Connection set-up and release 6. In datagram packet switching, packets traversing the same path experience the same delay. A. True B. False 7. Flow control is one of the physical layer functions. B. True B. False
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  • Fall '10
  • kangxi
  • True B. False, A. True B., B C D B B

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