CY-501 RGPV B.Tech
OS Internals for Security Support (OISS)
Previous year papers and the official syllabus are free to read, no account needed.
Previous Year Papers
5 papers, latest Dec 2025
- CY-501 paper, Dec 2025
- CY-501 paper, Jun 2025
- CY-501 paper, Dec 2024
- CY-501 paper, Nov 2023
- CY-501 paper, Nov 2022
Syllabus, notes and important questions for CY-501
Syllabus units
Topics as the official RGPV syllabus lists them.
Unit 1 Introduction To Kernel 21 topics
- Architecture of the UNIX operating system
- System concepts
- Data structures
- Buffer Cache
- Buffer header
- Structure of Buffer pool
- Reading and writing disk blocks
- Files INODES
- Structure of a regular file
- Directories
- Super block
- INODE assignment
- System calls - OPEN
- System calls - READ
- System calls - CLOSE
- System calls - WRITE
- System calls - CREATE
- System calls - CHMOD
- System calls - CHOWN
- Pipes
- Mounting and Un-mounting
Unit 2 Process 17 topics
- Layout System Memory
- Process Description
- Process control
- Process creation
- Signals
- Process scheduling
- Privileges
- Threats
- Intruders
- Malicious software
- Time
- Clock
- Principals of Concurrency
- Inter-Process Communications - Process tracing
- System V IPC
- Shared Memory
- Semaphores
Unit 3 Security and Protection in Operating Systems 11 topics
- Access control
- Auditing
- Trusted computing
- Multics and the commercial Operating Systems
- Malware analysis
- Protection viruses
- Worms and Trojans
- Root‑kits
- Ransomware
- Polymorphic malware
- Malware capture and analysis using honey‑pots
Unit 4 Common vulnerabilities and Exposures 7 topics
- Secure system configuration
- Virtualization techniques for security
- Mobile Operating Systems security
- Systems security in Android
- Application Security
- Secure wallets
- Secure co‑processors
Unit 5 Windows Operation System 16 topics
- Versions
- Concepts and tools
- Windows internals
- System Architecture
- System worker threads
- Windows global flags
- Local procedural calls
- Socket
- Sockets Programming
- Winsock
- Functions
- Data structures
- Descriptors
- Connections
- Socket elements
- Stream and Datagram Sockets
Exam insights
Counted from 5 past CY-501 papers.
Marks asked per paper, by unit
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Unit 1 Introduction To Kernel 25 marks
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Unit 2 Process 24 marks
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Unit 3 Security and Protection in Operating Systems 21 marks
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Unit 4 Common vulnerabilities and Exposures 21 marks
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Unit 5 Windows Operation System 15 marks
Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.
Asked again and again
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Explain how the operating system protects data through authentication, access control, auditing, and trusted computing.
Asked 3 times: 2025, 2024
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Explain the architecture of the Windows operating system and its important internals
Asked 3 times: 2025, 2022
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Explain mobile operating system security and components vulnerable to different attacks.
Asked 3 times: 2025, 2024, 2023