JNTU
JNTU B.Tech IV INFORMATION SECURITY Previous Question Paper (July/August - 2023 - R15)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Explain briefly Attacks on Computer.
Answer
Attacks on a computer system are unauthorized attempts to access, manipulate, or destroy information. They are generally categorized into passive attacks, which monitor data without altering it, and active attacks, which involve modifying data or creating false streams to compromise system integrity, availability, or confidentiality.
What is Cipher Text?
Answer
Cipher text is the scrambled or unreadable form of data produced after applying an encryption algorithm to the original information (plain text) using a specific key. It is designed to be unintelligible to unauthorized parties and can only be converted back to its original form through the decryption process.
Explain the concept of Diffie-Hellman Algorithm.
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Write a brief note on Symmetric Key Cipher.
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What is a Hash Function?
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Explain briefly about Message Authentication.
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Define S/MIME.
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What is IP Security?
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Write a short note on Intruders.
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What is Web Security?
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Part B
Explain in detail Types of Security attacks.
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Write a short note on Steganography.
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Write a detailed note on key range and key size.
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List out Security services.
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Explain in detail about Block Cipher Principles.
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Discuss about Principles of Public Key Cryptosystems.
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Write a detailed note on implementation of DES Algorithm.
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Explain briefly about Authentication Requirements.
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Write a short note on Digital Signatures.
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Explain in detail about X.509 Authentication Service.
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Write a detailed note on Pretty Good Privacy.
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Write a brief note on Combining Security Associations.
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Explain IP Security architecture with a neat diagram.
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Write a detailed note on Secure Socket Layer and Transport Layer Security.
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What is a Firewall? Explain in detail Firewall design principles and types of Firewalls.
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