OS Internals for Security Support (CY-501) - Important Questions

Explain in detail the role and structure of the Buffer Cache, Buffer Header, and Buffer Pool.

Explain the concept of INODES and the structure of a regular file in UNIX-like file system

Explain the architecture, components, features and major system concepts of the UNIX operating system.

What is the role of buffer pool and buffer header? Explain in detail.

Explain the importance of CHMOD and CHOWN for file permissions and ownership in an operating system.

Write short notes on directories, super block, and INODE assignment.

Explain the following system calls : OPEN, READ, WRITE, and CLOSE.

Convert symbolic file permissions rwxr-xr-- to octal equivalent and explain CHMOD.

Explain the role of super block in UNIX operating system.

With a neat sketch explain the buffer header and buffer pool.

Discuss the usage of queue and tree data structures in the operating system with their applications.

Explain the system calls.

What is a semaphore and what are the different types of semaphores? Explain each type with examples.

Explain the principles / requirements for the execution of concurrent processes

Explain the mechanism of process creation in Unix operating system.

What are the effects of privilege escalation vulnerabilities?

Explain the disadvantages of concurrency in operating system

Explain process layout in system memory and process control in UNIX.

Describe process creation and signals in UNIX.

Explain process scheduling and the principles of concurrency.

Given a counting semaphore initialized to 2, determine how many of three competing processes can enter the critical section at a time and explain why.

Explain the process life cycle with different components of process life cycle.

What are the different methods for IPC in operating system? Explain any one method in detail.

Explain the process life cycle. Write the components of PCB.

Explain how the operating system protects data through authentication, access control, auditing, and trusted computing.

What is a honeypot and how can it be used to protect against cyber attacks?

Explain in detail the different types of malware such as viruses, worms, Trojans, rootkits, and ransomware.

Define malware terms such as virus, worm, and rootkit.

Explain methods to protect data from ransomware attacks.

Explain how security and protection can be implemented in operating systems.

Define the following terms: Malware, Trojans, Root Kit.

Explain the different risks associated with ransomware attacks.

Write short notes on Worms, Trojans and Root-kits.

Discuss the problem of ransomware malware and how to protect from it.

Explain mobile operating system security and components vulnerable to different attacks.

Describe the different virtualization techniques used for security implementation.

Explain the common vulnerabilities and exposures for security.

Explain common vulnerabilities and exposures. What is meant by secure system configuration?

Explain the terms secure co-processors and secure wallet.

Discuss virtualization techniques for security and security issues in mobile operating systems, especially Android.

Explain in detail what a secure co-processor is and how it works.

What are the different levels of securities in Android operating system?

Define secure wallet and secure co-processor.

Explain the importance of secure wallets in detail.

Explain the architecture of the Windows operating system and its important internals

Define/explain what a socket is and describe the different types of sockets.

Explain the use of Winsock and Datagram sockets and describe the different types of Winsock functions.

Describe sockets and Winsock and differentiate between stream sockets and datagram sockets.

What is a socket, what are the types of sockets, and explain socket programming in detail.

With a neat sketch explain the windows system architecture.

Write short notes on any two of the following:

Write a short note on any two of the following: