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Final_exam_sample2

Final_exam_sample2 - CS118 SampleFinalExam Fall2007...

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CS 118 Computer Networking Fundamentals Sample Final Exam Fall 2007 Professor Mario Gerla Question Points Score 1 20 2 25 3 25 4 15 5 15 Total: 100 Name: _________________________ Student ID #:  _____________________ Instructions: - Closed book, two double sided 8.5”x11” sheet of notes - Calculators are allowed
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- 2 - - This exam has 12 pages, including this cover page
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- 3 - 1)  (20)   Answer the following True/False.  You do not need to explain your answer. a) Token Bucket is not suitable to handle bursts of traffic.     b) CSMA/CA allows multiple transmissions at the same time within the same area of  coverage.  c) When a collision happens in a CSMA/CD network the sender is able to stop the  transmission immediately saving precious time .  d) Weight Fair queuing always transmits the higher priority traffic first.    e) DiffServ is a QoS model for the Internet that requires a per flow state in each edge router  but reduces the load in the core network.  f) Integrated Services provides QoS support in terms differential behavior among different  traffic class.  g) The playout buffer for a multimedia application should follow the rule: The large the  better in any case.  h) SIP can be used to start a session that requires a codec negotiation.   i) In Link State routing, every node needs to know the complete network topology before  computing the path to each destination.  j) RTP is the panacea for multimedia applications since provides a reliable QoS support.  
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