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

CS-503-C Cyber Security - Jun 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
    aExplain the term Cyber Crime. List down some important cyber crimes and explain each of them in two to three sentences.
    How to answer
    • Define cyber crime as crime involving computer/network as target or tool
    • List important cyber crimes e.g. hacking, phishing, malware, identity theft, cyber stalking
    • Explain each in 2-3 sentences with nature and impact
  2. 7 Marks
    bWhich are more threatening to cyber security between viruses and worms? Describe precisely.
    How to answer
    • Define virus: needs host, human action to spread
    • Define worm: self-replicating, spreads over network independently
    • Compare propagation speed, damage potential and conclude which is more threatening
  3. 7 Marks
    aWhat is Salami Attack? What are the different techniques?
    How to answer
    • Define Salami Attack as small incremental fraud
    • Explain how small slices go unnoticed
    • List techniques/examples e.g. rounding down, penny shaving in banking
  4. 7 Marks
    bExplain the different types of phishing techniques.
    How to answer
    • Define phishing
    • Explain types e.g. spear phishing, whaling, vishing, smishing, clone phishing
    • Give example scenario for each type
  5. 7 Marks
    aWhat is password sniffing and cyber terrorism?
    How to answer
    • Define password sniffing: capturing passwords via packet sniffer
    • Define cyber terrorism: use of cyberspace for terrorist activities
    • Give examples and impact of each
  6. 7 Marks
    bExplain session hijacking. What are the problems may be generate due to session hijacking?
    How to answer
    • Define session hijacking and how attacker takes over session/token
    • Explain methods e.g. session fixation, sidejacking, XSS
    • List problems: data theft, impersonation, financial fraud, privacy loss
  7. 7 Marks
    aExplain the term 'Frauds' with reference to cyber crime and define the various types of online frauds.
    How to answer
    • Define frauds in cyber crime context
    • Classify online frauds e.g. credit card, auction, lottery, investment fraud
    • Briefly describe each type with example
  8. 7 Marks
    bWhat do you mean by identity theft? Describe its types? What techniques are used for ID theft?
    How to answer
    • Define identity theft
    • Describe types e.g. financial, criminal, medical, synthetic identity theft
    • Explain techniques e.g. phishing, skimming, malware, data breach
  9. 7 Marks
    aWhat are the different types of offence in Information Technology Act, 2000? Discuss cyber offence control mechanism under this Act.
    How to answer
    • List offences under IT Act 2000 e.g. hacking, data theft, virus, fraud, obscenity
    • Refer relevant sections 43, 65, 66, 67 etc.
    • Discuss control mechanism: adjudication, CERT-In, penalties, investigation
  10. 7 Marks
    bList down some of the strategies to tackle cyber crime.
    How to answer
    • List strategies e.g. awareness, strong authentication, firewall, IDS
    • Explain legal and organizational measures
    • Mention incident response and cooperation with law enforcement
  11. 7 Marks
    aHow can we check the validity of digital evidence?
    How to answer
    • Define digital evidence and need for authenticity
    • Explain chain of custody, hashing, write blockers
    • Mention validation via forensic tools and documentation
  12. 7 Marks
    bExplain records as evidence, status of electronic term according to IT Act 2000.
    How to answer
    • Explain records as evidence under IT Act
    • Discuss status of electronic records/forms
    • Refer relevant provisions on admissibility and authentication
  13. 7 Marks
    aDefine DoS and DDoS attacks in brief. What are the techniques behind such attacks?
    How to answer
    • Define DoS: single source overload; DDoS: distributed botnet attack
    • Explain techniques e.g. SYN flood, UDP flood, ICMP flood, botnets
    • Mention impact on availability and mitigation
  14. 7 Marks
    bExplain in brief note on Indian Evidence Act of 1872?
    How to answer
    • State purpose and scope of Indian Evidence Act 1872
    • Explain relevance to electronic/digital evidence amendments
    • Summarize key provisions on admissibility
  15. 14 Marks
    Write short notes on :
    1. a)Key loggers
    2. b)Email spoofing
    3. c)Software piracy
    How to answer
    • Define key loggers and hardware vs software types
    • Explain email spoofing with header forgery example
    • Explain software piracy types and legal consequences
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