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CS-503 (C) · Cyber Security/Unsolved PYQ Paper

CS-503-C Cyber Security - Dec 2025 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

  1. 7 Marks
    aDefine Cyber-crime. Discuss the challenges of cyber-crime in the modern digital world.
    How to answer
    • Definition of cyber-crime as unlawful act using computer/network as tool or target
    • Characteristics in modern digital world - scale, anonymity, borderless
    • Key challenges: jurisdiction, anonymity, rapid technology change, evidence volatility
    • Need for legal, technical and awareness measures
  2. 7 Marks
    bExplain different classifications of cyber-crimes such as e-mail spoofing, spamming, internet time theft and salami attack.
    How to answer
    • Brief meaning of classification of cyber-crimes
    • Explain e-mail spoofing with example
    • Explain spamming, internet time theft
    • Explain salami attack with example and preventive measures
  3. 7 Marks
    aExplain Web jacking, online fraud and software piracy with examples.
    How to answer
    • Define web jacking, online fraud, software piracy
    • Techniques and modus operandi of each
    • Illustrative examples for each category
    • Impact and countermeasures
  4. 7 Marks
    bDiscuss Computer network intrusions, password sniffing and identity theft.
    How to answer
    • Meaning of network intrusion and its types
    • Password sniffing - concept, tools and working
    • Identity theft - methods and consequences
    • Preventive and detective controls
  5. 7 Marks
    aExplain Cyber terrorism and virtual crimes. Discuss the perception of cyber criminals such as hackers and extremist groups.
    How to answer
    • Define cyber terrorism and virtual crimes
    • Objectives and methods of terrorists in cyberspace
    • Perception/motivation of hackers, crackers and extremist groups
    • Examples and impact on national security
  6. 7 Marks
    bWrite short notes on web server hacking and session hijacking.
    How to answer
    • Concept of web server hacking - phases and exploits
    • Concept of session hijacking - active/passive, methods
    • Tools and countermeasures for both
    • Concise structured short-note format
  7. 7 Marks
    aExplain the concept of cyber-crime in the context of the IT Act, 2000.
    How to answer
    • Background and objectives of IT Act, 2000
    • How cyber-crime defined/recognized under the Act
    • Relevant provisions for offences and penalties
    • Scope and limitations of the Act
  8. 7 Marks
    bDiscuss offences such as Hacking, cyber fraud, cheating, defamation and e-mail abuse under the IT Act.
    How to answer
    • Provisions for hacking, fraud and cheating under IT Act
    • Defamation and e-mail abuse offences and punishments
    • Relevant sections of IT Act with illustrations
    • Procedure for reporting and prosecution
  9. 7 Marks
    aExplain monetary penalties, jurisdiction and nature of criminality in cyber-crimes.
    How to answer
    • Monetary penalties prescribed under IT Act
    • Jurisdiction issues in borderless cyber-crimes
    • Nature of criminality - intent, harm, technology misuse
    • Examples of cases and enforcement challenges
  10. 7 Marks
    bDiscuss strategies to tackle cybercrime and emerging trends in cyber security.
    How to answer
    • Technical, legal and organizational strategies to tackle cybercrime
    • User awareness, incident response and cooperation
    • Emerging trends: AI, IoT, ransomware, cloud security
    • Future directions in cyber security
  11. 7 Marks
    aCompare the Indian Evidence Act, 1872 and the Information Technology Act, 2000 with respect to electronic records.
    How to answer
    • Provisions for electronic records under both Acts
    • Comparison of admissibility conditions and certification
    • Amendments to Evidence Act by IT Act
    • Tabular summary of similarities and differences
  12. 7 Marks
    bExplain relevancy, admissibility and probative value of electronic evidence.
    How to answer
    • Meaning of relevancy, admissibility and probative value
    • Conditions for admissibility of electronic evidence
    • Role of certificate and authentication
    • Court approach to weight of electronic evidence
  13. 7 Marks
    aExplain how digital signatures and electronic agreements are proved in courts.
    How to answer
    • Legal recognition of digital signatures and e-contracts
    • Procedure to prove signatures - certificates, CAs
    • Proof of electronic agreements in court
    • Case illustrations and evidentiary requirements
  14. 7 Marks
    bDescribe the proof and management of electronic messages and records.
    How to answer
    • Meaning of electronic messages and records
    • Modes of proof - production, secondary evidence
    • Management, preservation and chain of custody
    • Legal and technical safeguards
  15. 7 Marks
    aExplain tools used in cybercrimes such as proxy servers, anonymizers, key loggers, spyware and backdoors.
    How to answer
    • Function of proxy servers, anonymizers in hiding identity
    • Working of key loggers, spyware and backdoors
    • Use by attackers with examples
    • Detection and prevention tools
  16. 7 Marks
    bDiscuss Dos and DDoS attacks, buffer overflow and phishing techniques.
    How to answer
    • Mechanism of DoS vs DDoS attacks
    • Buffer overflow - concept and exploitation
    • Phishing - techniques and examples
    • Mitigation measures for each attack
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