BSc CS Sem 4 BSc CS Semester 4 (2018 2019) Apr 2019 WIRELESS SENSOR NETWORK AND MOBILE Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2) Figures to the right indicate marks

1. Q3 Illustrations, in-depth answers and diagrams will be appreciated
2. Q4 Mixing of sub-questions is not allowed
3. Q1 Attempt All(Each of 5Marks) (15M)
   • (a) 1. What is the access point (AP) in wireless LAN?
   • (a) wireless (b) device that (c) both device that (d) none of the itself devices to connect devices to connect to a wired network wired network
4. Q2 A transceiver that is ready to receive but is not currently receiving anything is said to be in an
   • (a) idle state (b) sleep state (c) transmit state (d) receive state
5. Q3 system consists of subsystems
6. Q4 Sky wave ranges from is a connection-oriented protocol
   • (a) true (b) false
   • (b) Fill in the blank with the following option
7. Q1 A sensor network is designed to collect information from a
8. Q2 The source of an event can be
9. Q3 A theoretical reference antenna is the
10. Q4 is to transmit data that has been collected by the sensor nodes to the base station Hierarchical routing protocols imposes a on the network
    • (c) Answer the following in one line
11. Q1 What Tiny Os?
12. Q2 What does a gateway node do?
13. Q4 Data dissemination?
14. Q5 stands for?
15. Q2 Attempt the following (Any THREE)(Each of 5Marks) (15M)
    • (a) Define & explain any five tasks of transceivers
    • (b) Explain sensor node with its different categories
    • (c) What are different optimization goals for Wireless Sensor Networks ?
    • (d) List & explain different types of application of WSN
    • (e) What are different functionalities that a service interface should provide in WSN?
    • (f) Explain the block diagram of a sensor node
16. Q3 Attempt the following (Any THREE) (Each of 5Marks) (15M)
    • (a) Explain different performance requirements of MAC protocol
    • (b) Explain periodic Listen & sleep operation in S-MAC
    • (c) List & Explain different routing strategies in WSN
    • (d) How Power-efficient gathering in sensor information systems routing
    • (e) What are the issues need to consider to design transport protocols for WSNs
    • (f) Explain SPIN protocol
17. Q4 Attempt the following (Any THREE) (Each of SMarks) (15M)
    • (a) Explain range for signal propagation in wireless transmission
    • (b) What are the Tele services provided by GSM?
    • (c) With block diagram Explain System architecture of UMTS
    • (d) Write difference between GEO, LEO, MEO?
    • (e) Explain is HSCSD( High Speed circuit Switched data)
    • (f) Explain features of DECT System
18. Q5 Attempt the following (Any THREE) (Each of 5Marks) (15M)
    • (a) Discuss Salient features of TinyOS
    • (b) How Congestion Detection and Avoidance works?
    • (c) Discuss any 2 wireless devices
    • (d) Write a short note on Radio subsystem and its components
    • (e) Discuss the advantages of cellular systems with small cells

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