EC2352 computer networks question bank

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DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
QUESTION BANK 
  
SYEAR: IIIrd year ‘B’ Sec      SEMESTER : VI
UNIT-I PHYSICAL LAYER 
PART-A (2 Marks)
  1. What are the five important components of data communication?
  2.  List two advantages of layering principle in computer networks.?
  3.  With the example explain half duplex communication.?
  4.  Mention any two functions of session layer.?
  5.  Name four topologies of computer networks.?
  6.  Suggest two points to improve the performance of network.?
  7.  With the example explain half duplex communication.?
  8.  Define protocol. ?
  9. Differentiate guided and unguided media. ?
  10.  What is the Null modem? 
  11.  Define Topology.?
  12.  Define standards?
  13.   What are the design factors for transmission media? 
  14. Difference between Guided media and un guided media?
  15.  Define line coding?
  16.  What are most popular modems? 
  17. Define network?
  18. What are the criteria for networks for networks?
  19. Define point to point and Multi point?
  20. What is DSL ?
PART-B 
1. Explain the OSI-ISO model I of computer with neat diagram. (16) 
2. Distinguish between Point to Point links and multi-point linkswith relevant diagram. (16)
 3. 
         (i) compare connection oriented and connection less service. (8)
         (ii) Differentiate Guided media and un guided media. (8)
4. Write shot notes on 
           a. TCP/IP protocol suite
     b. Networks Model
           c. datagram network
                       d. Virtual circuit network(4)
 5. Perform a comparative study between the ISO-OSI model and TCP/IP referencemodel. (16)
 6.Explain how cable TV used for data transfer?
 7.Explain different switched networks?


 

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