Advanced Computer Networks

  

UNIT I: Opportunistic and Social Networks

 

1. Explain the architecture and working of Cognitive Radio Networks (CRN). How do they help in overcoming spectrum scarcity?

2. What is a Delay Tolerant Network (DTN)? Discuss its significance and challenges from a security and reliability standpoint.

3. Describe the routing techniques used in opportunistic mobile and social networks. How can malicious nodes affect routing performance?

4. Define Quality of Service (QoS). Discuss different QoS parameters (network, system, task, and extension) with respect to secure data transmission.

 

UNIT II: Internet of Things (IoT) Networks

 

1. Explain the key technologies and architecture of IoT. What are the main security vulnerabilities associated with IoT devices?

2. Compare IoT and traditional web architectures. How does this comparison affect data privacy and network security?

3. Discuss IoT communication protocols (MQTT, CoAP, XMPP, AMQP) and their security implications.

4. What is the role of Edge computing and caching in IoT networks? Explain their importance in reducing attack surfaces.

 

UNIT III: Software Defined Networks (SDN)

 

1. What is Software Defined Networking (SDN)? Explain how SDN improves network control and security compared to traditional networks.

2. Define Network Function Virtualization (NFV). Discuss how NFV contributes to network scalability and security in modern infrastructures.

3. Describe unicast and multicast routing in SDN. How does SDN handle secure routing and data isolation?

4. Discuss the security implications of HTTP-based content delivery such as DASH and HLS in SDN environments.

 

 

 

 

 

UNIT IV: Content Distribution and Synchronization

 

1. Describe different CDN topologies (Edge-Caching, Hybrid, Satellite, etc.) and analyze their security strengths and weaknesses.

2. What is the role of computer hosting and orchestration in network virtualization? Discuss potential cyber threats.

3. Explain the Precision Time Protocol (PTP) and its importance in synchronization security within SDN.

4. Compare absolute clock synchronization and difference clock synchronization. What are the security concerns in each?

 

UNIT V: Emerging Trends and Future Directions

 

1. Discuss blockchain applications in networking. How does blockchain enhance data integrity and trust in distributed environments?

2. Explain the concept of Quantum Networking. What are its security benefits and challenges for the future internet?

3. What is Edge Computing? Discuss its role in secure data processing and real-time threat detection.

4. Define Green Networking. How does sustainability intersect with cybersecurity and energy-efficient network design?

 

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