SPPU Computer Engineering (Semester 5)
Data Communication and Wireless Sensor Networks
May 2017
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


Solve any one question from Q.1(a,b) &Q.2(a,b)
1(a) "In Adaptive delta modulation quantization error increases as slope error reduces" State true or false with proper justification.
6 M
1(b) How does Virtual Private Network wok? Write applicationof VPN.
4 M

2(a) Draw and Explain B8ZS, AMI line coding techniques in detail.
6 M
2(b) Explain necessity of flow and error control protocols in Wireless Sensor Network.
4 M

Solve any one question from Q.3(a,b) &Q.4(a,b)
3(a) Three thousand six hundred reservation stations are available for use of single slotted ALOHA channel. The average station have 10 reservation request per hour. A slot has 125μs. What is approximate channel load?
6 M
3(b) "CDSMA CD minimizes the recovery time post collision while CSMA CA reduces possibility of a collision" State true or false with justifiaction.
4 M

4(a) Identify the difference between Ad hoc and cellular netwrok.
6 M
4(b) Write in detail applications Wireless body Sensor Netwok in health domain.
4 M

Solve any one question from Q.5(a,b) &Q.6(a,b)
5(a) Design suitable criteria that decides selection of schedule or contention based protocols in MAC layer.
8 M
5(b) Explainn with neat diagram Sensor Medium Acess Control Protocol in Wireless Sensor Network.
8 M

6(a) Discuss the detail design issues related to address and name management in Wireless Sensor Network.
8 M
6(b) Describe the necessity of low duty cycle protocols and wakeup concept in Wireless Sensor Network.
8 M

Solve any one question from Q.7(a,b,c) &Q.8(a,b,c)
7(a) Explainnthe concept of " Information via Negotation" in SPIN.
8 M
7(b) Explain in detail data centric or attribute based routing protocol with example.
5 M
7(c) Describe role of network layer in data dissemination and gathering .
5 M

8(a) "Low Energy Adaptive Clusutering Hierarchy protocol improves lifetime of the Wireless Sensor Network" State True of False with justification.
8 M
8(b) With neat diagram explain working of Power Efficient Gathering in Sensor information System protocol in Wireless Sensor Network.
5 M
8(c) Compare proactive and reactive routing protocol design issues in Wireless Sensor Network.
5 M

Solve any one question from Q.9(a,b) &Q.10(a,b,c)
9(a) "Tiny OS is application specific operating system for Wireless Sensor Network" Justify the statement with respective to architecture, design, issues, functions.
8 M
9(b) Design role of Wirelss Sensor Network in Internet of Things.
8 M

10(a) "Designing algorithms for Localization and positioning of Wireless Sensor Network in remote, disastrous region is challenging" Justify with example.
8 M
10(b) Discuss necessity of big data solutions for Wireless Sensor Network.
4 M
10(c) Explain Significance of anchor placement in Wireless Sensor Network.
4 M



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