JNTU Kakinada B-Tech 4-2 WIRELESS SENSORS AND NETWORKS R13 April 2018 Question Paper

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Point out the challenges for WSNs. [3]
b) Give the list of the appropriate transceivers for WSNs. [4]
c) What are the design issues of MAC protocol for Ad hoc wireless networks? [4]
d) Briefly explain hierarchical routing protocols. [3]
e) Why does TCP not work well in ad hoc network? [4]
f) Why secure routing protocols are needed? [4]

PART ?B (3×16 = 48 Marks)2. a) Explain the energy consumption of sensor nodes. [8]
b) Explain about energy consumption of sensor nodes in detail. [8]

3. a) Discuss about the MANETs. [8]
b) Design a transceiver in wireless sensor network for any one application. [8]

4. a) Explain in detail low duty cycle MAC protocols. [8]
b) Generalize the concepts on important classes of MAC protocol. [8]

5. a) Illustrate the basics of table driven Routing Protocols for WSN. [8]
b) Explain about Power-Aware routing Protocols. [8]

6. a) Explain the classification of transport layer solutions. [8]
b) With any five major reasons, analyze why TCP is exposed to significant
throughput degradation in ad hoc networks.
[8]

7. a) Explain how the security provisioning in adhoc network differs from that in
infrastructure based network.
[8]
b) Write notes on State centric program. [8]

Code No: RT42044A
Set No. 1
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Point out the challenges for WSNs. [3]
b) Give the list of the appropriate transceivers for WSNs. [4]
c) What are the design issues of MAC protocol for Ad hoc wireless networks? [4]
d) Briefly explain hierarchical routing protocols. [3]
e) Why does TCP not work well in ad hoc network? [4]
f) Why secure routing protocols are needed? [4]

PART ?B (3×16 = 48 Marks)2. a) Explain the energy consumption of sensor nodes. [8]
b) Explain about energy consumption of sensor nodes in detail. [8]

3. a) Discuss about the MANETs. [8]
b) Design a transceiver in wireless sensor network for any one application. [8]

4. a) Explain in detail low duty cycle MAC protocols. [8]
b) Generalize the concepts on important classes of MAC protocol. [8]

5. a) Illustrate the basics of table driven Routing Protocols for WSN. [8]
b) Explain about Power-Aware routing Protocols. [8]

6. a) Explain the classification of transport layer solutions. [8]
b) With any five major reasons, analyze why TCP is exposed to significant
throughput degradation in ad hoc networks.
[8]

7. a) Explain how the security provisioning in adhoc network differs from that in
infrastructure based network.
[8]
b) Write notes on State centric program. [8]

Code No: RT42044A
Set No. 1
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) State few characteristic requirements of WSNs. [4]
b) What is the exposed node problem? [3]
c) What are the requirements for wireless MAC protocols? [4]
d) What is the concept of Flooding mechanism? [4]
e) What are the differential transport layer protocols? [4]
f) List the network security requirements. [3]

PART ?B (3×16 = 48 Marks)2. a) Explain about single node architecture. [10]
b) Explain the enabling technologies for WSNs. [6]

3. a) Discuss about WANETs. [8]
b) Write in detail the four operational states of transceiver. [8]

4. a) Briefly specify IEEE 802.15.4 MAC protocol and explain whether the MAC
protocols of 802.11 & Bluetooth be used for WSN. Justify.
[8]
b) Illustrate the basics of contention-based protocol for WSN. [8]

5. a) Illustrate in detail about efficient routing protocols with flooding mechanisms
for WSNs.
[8]
b) Explain about Hierarchical routing protocols. [8]

6. a) What are the design issues of Transport layer protocol for Ad hoc wireless
networks?
[8]
b) Explain in detail about transport layer protocols with neat diagram. [8]

7. a) List out and explain how some of the internet properties of the wireless Adhoc
networks introduce difficulties while implementing security in routing
protocols.

[8]
b) Discuss about Node level software Platforms. [8]

Code No: RT42044A
Set No. 2
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Point out the challenges for WSNs. [3]
b) Give the list of the appropriate transceivers for WSNs. [4]
c) What are the design issues of MAC protocol for Ad hoc wireless networks? [4]
d) Briefly explain hierarchical routing protocols. [3]
e) Why does TCP not work well in ad hoc network? [4]
f) Why secure routing protocols are needed? [4]

PART ?B (3×16 = 48 Marks)2. a) Explain the energy consumption of sensor nodes. [8]
b) Explain about energy consumption of sensor nodes in detail. [8]

3. a) Discuss about the MANETs. [8]
b) Design a transceiver in wireless sensor network for any one application. [8]

4. a) Explain in detail low duty cycle MAC protocols. [8]
b) Generalize the concepts on important classes of MAC protocol. [8]

5. a) Illustrate the basics of table driven Routing Protocols for WSN. [8]
b) Explain about Power-Aware routing Protocols. [8]

6. a) Explain the classification of transport layer solutions. [8]
b) With any five major reasons, analyze why TCP is exposed to significant
throughput degradation in ad hoc networks.
[8]

7. a) Explain how the security provisioning in adhoc network differs from that in
infrastructure based network.
[8]
b) Write notes on State centric program. [8]

Code No: RT42044A
Set No. 1
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) State few characteristic requirements of WSNs. [4]
b) What is the exposed node problem? [3]
c) What are the requirements for wireless MAC protocols? [4]
d) What is the concept of Flooding mechanism? [4]
e) What are the differential transport layer protocols? [4]
f) List the network security requirements. [3]

PART ?B (3×16 = 48 Marks)2. a) Explain about single node architecture. [10]
b) Explain the enabling technologies for WSNs. [6]

3. a) Discuss about WANETs. [8]
b) Write in detail the four operational states of transceiver. [8]

4. a) Briefly specify IEEE 802.15.4 MAC protocol and explain whether the MAC
protocols of 802.11 & Bluetooth be used for WSN. Justify.
[8]
b) Illustrate the basics of contention-based protocol for WSN. [8]

5. a) Illustrate in detail about efficient routing protocols with flooding mechanisms
for WSNs.
[8]
b) Explain about Hierarchical routing protocols. [8]

6. a) What are the design issues of Transport layer protocol for Ad hoc wireless
networks?
[8]
b) Explain in detail about transport layer protocols with neat diagram. [8]

7. a) List out and explain how some of the internet properties of the wireless Adhoc
networks introduce difficulties while implementing security in routing
protocols.

[8]
b) Discuss about Node level software Platforms. [8]

Code No: RT42044A
Set No. 2
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Generalize the three types of mobility for mobile nodes. [4]
b) What are the responsibilities of physical layer? [4]
c) What is inbound neighbor? [3]
d) Examine the differences between table driven or proactive routing protocols. [4]
e) List the issues and challenges in security provisioning of transport layer. [4]
f) How is secure routing done on wireless channels? [3]

PART ?B (3×16 = 48 Marks)2. a) Discuss the advantages and applications of sensor networks. [8]
b) Explain how the sensor networks are deployed for various applications. [8]

3. a) Explain the physical layer and transceiver design considerations in wireless
networks.
[8]
b) Compare MANET and WSN. [8]

4. a) What are the requirements and design constraints for wireless MAC protocols. [8]
b) Explain about MAC protocols that use directional antennas. [8]

5. a) What are the different classes of Routing Protocols? [8]
b) Explain about power-aware routing protocols. [8]

6. a) What are the Classification of Transport layer Protocols? [8]
b) Why does TCP not perform well in adhoc wireless network? Explain. [8]

7. a) What are the design issues and challenges in security provisioning? [8]
b) Write short notes on Wireless Fidelity systems of WSN. [8]

Code No: RT42044A
Set No. 3
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Point out the challenges for WSNs. [3]
b) Give the list of the appropriate transceivers for WSNs. [4]
c) What are the design issues of MAC protocol for Ad hoc wireless networks? [4]
d) Briefly explain hierarchical routing protocols. [3]
e) Why does TCP not work well in ad hoc network? [4]
f) Why secure routing protocols are needed? [4]

PART ?B (3×16 = 48 Marks)2. a) Explain the energy consumption of sensor nodes. [8]
b) Explain about energy consumption of sensor nodes in detail. [8]

3. a) Discuss about the MANETs. [8]
b) Design a transceiver in wireless sensor network for any one application. [8]

4. a) Explain in detail low duty cycle MAC protocols. [8]
b) Generalize the concepts on important classes of MAC protocol. [8]

5. a) Illustrate the basics of table driven Routing Protocols for WSN. [8]
b) Explain about Power-Aware routing Protocols. [8]

6. a) Explain the classification of transport layer solutions. [8]
b) With any five major reasons, analyze why TCP is exposed to significant
throughput degradation in ad hoc networks.
[8]

7. a) Explain how the security provisioning in adhoc network differs from that in
infrastructure based network.
[8]
b) Write notes on State centric program. [8]

Code No: RT42044A
Set No. 1
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) State few characteristic requirements of WSNs. [4]
b) What is the exposed node problem? [3]
c) What are the requirements for wireless MAC protocols? [4]
d) What is the concept of Flooding mechanism? [4]
e) What are the differential transport layer protocols? [4]
f) List the network security requirements. [3]

PART ?B (3×16 = 48 Marks)2. a) Explain about single node architecture. [10]
b) Explain the enabling technologies for WSNs. [6]

3. a) Discuss about WANETs. [8]
b) Write in detail the four operational states of transceiver. [8]

4. a) Briefly specify IEEE 802.15.4 MAC protocol and explain whether the MAC
protocols of 802.11 & Bluetooth be used for WSN. Justify.
[8]
b) Illustrate the basics of contention-based protocol for WSN. [8]

5. a) Illustrate in detail about efficient routing protocols with flooding mechanisms
for WSNs.
[8]
b) Explain about Hierarchical routing protocols. [8]

6. a) What are the design issues of Transport layer protocol for Ad hoc wireless
networks?
[8]
b) Explain in detail about transport layer protocols with neat diagram. [8]

7. a) List out and explain how some of the internet properties of the wireless Adhoc
networks introduce difficulties while implementing security in routing
protocols.

[8]
b) Discuss about Node level software Platforms. [8]

Code No: RT42044A
Set No. 2
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) Generalize the three types of mobility for mobile nodes. [4]
b) What are the responsibilities of physical layer? [4]
c) What is inbound neighbor? [3]
d) Examine the differences between table driven or proactive routing protocols. [4]
e) List the issues and challenges in security provisioning of transport layer. [4]
f) How is secure routing done on wireless channels? [3]

PART ?B (3×16 = 48 Marks)2. a) Discuss the advantages and applications of sensor networks. [8]
b) Explain how the sensor networks are deployed for various applications. [8]

3. a) Explain the physical layer and transceiver design considerations in wireless
networks.
[8]
b) Compare MANET and WSN. [8]

4. a) What are the requirements and design constraints for wireless MAC protocols. [8]
b) Explain about MAC protocols that use directional antennas. [8]

5. a) What are the different classes of Routing Protocols? [8]
b) Explain about power-aware routing protocols. [8]

6. a) What are the Classification of Transport layer Protocols? [8]
b) Why does TCP not perform well in adhoc wireless network? Explain. [8]

7. a) What are the design issues and challenges in security provisioning? [8]
b) Write short notes on Wireless Fidelity systems of WSN. [8]

Code No: RT42044A
Set No. 3
R13
1 of 1

IV B.Tech II Semester Regular/Supplementary Examinations, April – 2018
WIRELESS SENSORS AND NETWORKS (Common to Electronics and Communications Engineering, Electronics and
Instrumentation Engineering & Electronics and Computer Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) What are the difference between sensor network and MANET? [4]
b) What is a communication protocol for physical layer? [4]
c) Differentiate between contention based MAC protocol and schedule based
MAC protocol.
[4]
d) What are salient features of on demand protocols routing? [4]
e) Name the four aspects of security. [3]
f) What do you mean by active and passive attacks? [3]

PART ?B (3×16 = 48 Marks)2. a) Explain the various challenges and of potential applications of wireless sensor
Networks.
[10]
b) Define the types of Sensors. [6]

3. a) Discuss the main responsibilities of physical layer. Explain about the design
parameters of physical layer.
[8]
b) Explain about topologies of PANs. [8]

4. a) Design the approaches and performance of S-MAC protocol. [8]
b) Explain about MAC Protocols that use directional Antennas. [8]

5. a) What are the design issues of Routing protocol for Ad hoc wireless networks? [8]
b) Illustrate the basics of proactive routing protocol for WSN. [8]

6. a) Explain the differences of TCP over Ad hoc wireless networks. [8]
b) Explain ad hoc TCP states and event action mapping in detail. [8]

7. a) Explain various network and application layer security attacks in detail. [8]
b) Write notes on Implementation procedure of node level simulators.
[8]

Code No: RT42044A
Set No. 4
R13
1 of 1