Course Title: Wireless Adhoc and Sensor Networks
Course Code: OEC-ECE-430G
Semester: B.Tech. 8th Semester (CSE)
December — 2025 Examination
Short Answer Questions [6 × 2.5 = 15 marks]
- Explain the following:
(i) What are the characteristics of MANET.
(ii) Differentiate between reactive routing protocol and proactive routing protocol.
(iii) What is broadcast storm problem?
(iv) List the different types of passive attacks.
(v) Explain Intrusion Detection System.
(vi) Define dynamic nature of WSN.
Unit-I [15 marks]
- (a) Discuss the various issues in Adhoc Wireless sensor network. [8]
(b) List and brief the various applications of MANETs. [7] - (a) Explain the challenges in designing routing algorithms. [8]
(b) Give the significance of the principle involved in a demand routing protocol. [7]
Unit-II [15 marks]
- (a) Illustrate the table driven routing algorithm — Cluster Head Gateway routing protocol. [8]
(b) Explain the hidden-terminal problem and the exposed-terminal problem. How can it be avoided? [7] - (a) What is Geocasting? Explain any one application of Geocasting in detail. [8]
(b) Explain any two variations in TCP protocol with their advantages and disadvantages. [7]
Unit-III [15 marks]
- (a) List the issues of designing a MAC protocol for ad hoc networks. [8]
(b) Elaborate the sensor network architecture with a diagram. [7] - What are the main components of a sensor node? Discuss its role and limitations. [15]
Unit-IV [15 marks]
- (a) Write the functionalities of NS-2 in the simulation of sensor network. [8]
(b) Explain any four major challenges of security in WSN. [7] - Explain how the TinyOS operating system supports resource constrained hardware platforms. Discuss in detail. [15]
May — 2025 Examination
Short Answer Questions [5 × 3 = 15 marks]
- Explain the following:
(a) What do you mean by a routing table.
(b) How a reactive routing protocol is different from a proactive routing protocol?
(c) What is hidden terminal problem?
(d) Differentiate between active and passive sensors.
(e) Explain Tiny GALS.
Unit-I [15 marks]
- (a) Explain the characteristics of Mobile Ad hoc Networks (MANETs). [8]
(b) List and brief the various applications of MANETs. [7] - (a) Give the taxonomy of MANET routing algorithm. [8]
(b) Explain and illustrate any one Topology-based Routing algorithm. [7]
Unit-II [15 marks]
- (a) Differentiate DSDV and AODV. [8]
(b) What is broadcast storm problem? How to avoid this problem? [7] - (a) What is multicast? Explain any one application of multicast in detail. [8]
(b) Explain any two variations in TCP protocol with their advantages and disadvantages. [7]
Unit-III [15 marks]
- (a) Explain MAC protocols for wireless sensor Networks. [8]
(b) Elaborate the sensor network architecture with a diagram. [7] - List the design goals of MAC protocol for ad-hoc networks. [15]
Unit-IV [15 marks]
- (a) Write the functionalities of NS-2 in the simulation of sensor network. [8]
(b) Mention the use of TOSSIM simulator in modelling wireless network. [7] - Explain the features and limitations of Tiny OS. [15]
December — 2023 Examination
Short Answer Questions [6 × 2.5 = 15 marks]
- Define the following:
(a) Wireless sensor network
(b) Difference between cellular network and ad-hoc wireless network
(c) TCP protocol
(d) Quality of Service (QOS)
(e) MAC Layer
(f) Data relaying in wireless sensor network
Section-A [15 marks]
- (a) Discuss the characteristics of wireless channel. [15]
or
(b) Explain position based routing algorithms. [15] - What are the applications of MANET and challenges of MANET? [15]
Section-B [15 marks]
- What is TCP? Discuss with an example TCP over Ad-hoc wireless networks. [15]
- Discuss any four reactive routing protocols for Ad-hoc wireless networks. [15]
Section-C [15 marks]
- Discuss architecture of wireless sensor network with diagrammatic illustration. [15]
or
Present an overview of MAC protocols for wireless sensor networks. [15] - (a) Appraise the QoS related measures in wireless sensor networks. [7]
(b) Outline the issues related to the transport layer in wireless sensor networks. [8]
Section-D [15 marks]
- (a) Appraise the issues related to routing in wireless sensor networks. [7]
(b) Present an overview of localization in wireless sensor network. [8] - (a) Explain Intrusion Detection System. [7]
(b) Explain Network Simulator. [8]
May — 2023 Examination
Short Answer Questions [6 × 2.5 = 15 marks]
- Briefly explain the following terms:
(a) MANET
(b) Geocasting
(c) Key Management
(d) TinyOS
(e) Routing Layer
(f) Sensors
Section-A [15 marks]
- Discuss the characteristics & applications of MANETs in detail. [15]
- Explain the following protocols in detail: [2 × 7.5 = 15]
(a) Reactive Routing Protocol
(b) Proactive Routing Protocol
Section-B [15 marks]
- Explain the following:
(a) Broadcast storm problem [7]
(b) Transmission control protocol [8] - Discuss different solutions for TCP over Adhoc network in detail. [15]
Section-C [15 marks]
- Discuss the classification of wireless sensor networks and its applications in detail. [15]
- Explain the physical and MAC layer of Wireless sensor network in detail. [15]
Section-D [15 marks]
- Explain the following: [2 × 7.5 = 15]
(a) Dynamic nature of WSNs.
(b) Secure routing in WSNs. - Explain the following: [2 × 7.5 = 15]
(a) Intrusion Detection System
(b) Network Simulator
July — 2022 Examination
Short Answer Questions [6 × 2.5 = 15 marks]
- Briefly explain the following terms:
(a) WSN
(b) Secure routing
(c) MANETs
(d) Link Layer
(e) Multicasting
(f) Berkeley Motes
Section-A [15 marks]
- Discuss different routing algorithms of MANETs in detail. [15]
- Explain the following: [7.5 × 2 = 15]
(a) Applications of MANETs
(b) Challenges of MANETs
Section-B [15 marks]
- Write down different solutions for TCP Over Adhoc network in detail. [15]
- Explain the following:
(a) Transmission control protocol [7]
(b) Broadcast storm problem [8]
Section-C [15 marks]
- Explain the architecture of wireless sensor network in detail. [15]
- Explain the following layers of WSN: [5 × 3 = 15]
(a) Physical Layer
(b) MAC Layer
(c) Link Layer
Section-D [15 marks]
- Explain the following: [7.5 × 2 = 15]
(a) Intrusion Detection System
(b) Sensor Networks & mobile robots - Explain the following: [7.5 × 2 = 15]
(a) Cooperation in MANETs
(b) Sensor Network tools