Harsh RB

COT Questions

5 min read

UNIT–I: Information Theory

Topics: Shannon capacity, entropy, coding, modulation, Internet basics

Long Answer Questions (10 Marks)

  1. Explain the concept of Shannon Capacity and derive its formula.

  2. Define entropy and explain its significance in information theory.

  3. Explain information content and its mathematical representation.

  4. Describe source coding techniques with examples.

  5. Explain channel coding and its importance in communication systems.

  6. Discuss different modulation schemes used in communication systems.

  7. Explain the role of Boolean logic in data processing.

  8. Discuss multimedia data and its characteristics.

  9. Explain the fundamentals of Internet communication.

  10. Compare source coding and channel coding.

Medium Answer Questions (5 Marks)

  1. Define entropy and explain with an example.

  2. What is information content?

  3. Explain Shannon theorem briefly.

  4. Write a note on modulation techniques.

  5. Explain data processing in communication systems.

Short Answer Questions (2 Marks)

  1. Define entropy.

  2. What is information theory?

  3. What is Shannon capacity?

  4. Define source coding.

  5. Define channel coding.

  6. What is modulation?

  7. What is bandwidth?

  8. What is noise?

  9. What is Boolean logic?

  10. What is multimedia data?

  11. Define bit rate.

  12. What is redundancy?

  13. What is signal-to-noise ratio?

  14. What is digital communication?

  15. What is analog communication?

UNIT–II: Wireless Communication Technologies

Topics: WLAN, Wi-Fi, Bluetooth, PAN, WAN, satellite, broadcasting

Long Answer Questions (10 Marks)

  1. Explain Wireless LAN and its working principles.

  2. Describe Wi‑Fi architecture and protocols.

  3. Explain Bluetooth technology and its applications.

  4. Compare WLAN, PAN, and WAN technologies.

  5. Explain satellite communication systems with diagram.

  6. Discuss broadcast services and their types.

  7. Explain different wireless communication technologies in detail.

  8. Compare Wi-Fi and Bluetooth technologies.

  9. Explain PAN and WAN technologies with examples.

  10. Describe advantages and limitations of wireless communication.

Medium Answer Questions (5 Marks)

  1. What is WLAN?

  2. Explain Wi-Fi briefly.

  3. Write a note on Bluetooth.

  4. Explain satellite communication basics.

  5. What are broadcast services?

Short Answer Questions (2 Marks)

  1. Define WLAN.

  2. What is Wi-Fi?

  3. What is Bluetooth?

  4. What is PAN?

  5. What is WAN?

  6. What is satellite communication?

  7. What is a transponder?

  8. What is broadcasting?

  9. What is frequency band?

  10. What is wireless communication?

  11. What is signal attenuation?

  12. What is interference?

  13. What is mobility?

  14. What is coverage area?

  15. What is bandwidth in wireless?

UNIT–III: Cellular Mobile Networks

Topics: GSM, 3G, 4G, 5G, planning

Long Answer Questions (10 Marks)

  1. Explain the architecture of GSM.

  2. Describe UMTS and its features.

  3. Explain LTE architecture and advantages.

  4. Discuss the features and architecture of 5G.

  5. Compare 2G, 3G, 4G, and 5G technologies.

  6. Explain mobile network planning and its importance.

  7. Discuss challenges in cellular network design.

  8. Explain evolution of mobile communication technologies.

  9. Describe spectrum allocation in mobile networks.

  10. Explain handoff and roaming in cellular networks.

Medium Answer Questions (5 Marks)

  1. What is GSM?

  2. Explain UMTS.

  3. What is LTE?

  4. What is 5G?

  5. Explain mobile network planning.

Short Answer Questions (2 Marks)

  1. Define cellular network.

  2. What is a cell?

  3. What is handoff?

  4. What is roaming?

  5. What is base station?

  6. What is frequency reuse?

  7. What is spectrum?

  8. What is 3G?

  9. What is 4G?

  10. What is 5G?

  11. What is latency?

  12. What is throughput?

  13. What is bandwidth in cellular systems?

  14. What is network coverage?

  15. What is cell splitting?

UNIT–IV: Free Space Optical Communications

Topics: Optical fiber, FTTH, FSO, deep space

Long Answer Questions (10 Marks)

  1. Explain optical fiber communication with diagram.

  2. Describe different fiber technologies: FTTC, FTTH, FTTBS.

  3. Explain free space optical (FSO) communication systems.

  4. Discuss channel models in optical communication.

  5. Explain factors affecting free space optical links.

  6. Describe deep space optical communication.

  7. Compare optical fiber and wireless communication.

  8. Explain advantages and limitations of optical communication.

  9. Discuss applications of FSO communication.

  10. Explain attenuation and dispersion in optical fiber.

Medium Answer Questions (5 Marks)

  1. What is optical fiber?

  2. Explain FTTH.

  3. What is FSO communication?

  4. Write a note on deep space communication.

  5. Explain channel model briefly.

Short Answer Questions (2 Marks)

  1. Define optical fiber.

  2. What is FTTH?

  3. What is FTTC?

  4. What is FTTBS?

  5. What is FSO?

  6. What is attenuation?

  7. What is dispersion?

  8. What is optical signal?

  9. What is line-of-sight communication?

  10. What is channel model?

  11. What is laser communication?

  12. What is photodetector?

  13. What is optical bandwidth?

  14. What is noise in optical systems?

  15. What is deep space communication?

UNIT–V: Network Security and Management

Topics: Encryption, authentication, SNMP, management

Long Answer Questions (10 Marks)

  1. Explain symmetric and asymmetric encryption techniques.

  2. Describe authentication mechanisms in network security.

  3. Explain hash functions and their role in integrity.

  4. Discuss network security threats and prevention techniques.

  5. Explain SNMP architecture and working.

  6. Describe Telecommunications Management Network (TMN).

  7. Explain functionalities of network management.

  8. Compare symmetric and asymmetric encryption.

  9. Explain integrity checking mechanisms.

  10. Discuss trends and future developments in network security.

Medium Answer Questions (5 Marks)

  1. What is encryption?

  2. Explain authentication.

  3. What is hashing?

  4. Explain SNMP.

  5. What is network management?

Short Answer Questions (2 Marks)

  1. Define encryption.

  2. What is decryption?

  3. What is symmetric encryption?

  4. What is asymmetric encryption?

  5. What is authentication?

  6. What is hash value?

  7. What is integrity?

  8. What is SNMP?

  9. What is TMN?

  10. What is network management?

  11. What is security key?

  12. What is digital signature?

  13. What is firewall?

  14. What is intrusion detection?

  15. What is confidentiality?

Most Expected 10-Mark Questions (Important)

  1. Shannon capacity and entropy

  2. Wireless communication technologies (Wi-Fi, Bluetooth)

  3. GSM, LTE, and 5G comparison

  4. Optical fiber and FSO communication

  5. Encryption techniques and SNMP

  6. Satellite communication

  7. Modulation techniques

  8. Mobile network planning

  9. Channel coding vs source coding

  10. Network security mechanisms

Most Expected 2-Mark Questions (Repeated Topics)

  1. Define entropy

  2. What is Wi-Fi?

  3. What is GSM?

  4. What is LTE?

  5. What is 5G?

  6. What is optical fiber?

  7. What is FSO?

  8. What is encryption?

  9. What is SNMP?

  10. What is authentication

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