Operating Systems

Explain RTOS.

Explain the concept of a race condition in concurrent programming.

Explain the concept of a shell pipeline in Unix-like operating systems.

Explain the concept of a trap or exception in the context of operating systems.

Explain the concept of a zombie process in Unix-like operating systems.

Explain the concept of file permissions in Unix-like operating systems.

Explain the difference between a monolithic kernel and a microkernel. What are the advantages and disadvantages of each?

Explain the purpose of a device driver in an operating system.

Explain the purpose of the I/O scheduler in operating systems.

Explain the role of a file descriptor in file I/O operations in Unix-like operating systems.

Explain the role of an interrupt in the context of CPU operation.

Explain the role of the init process in Unix-like operating systems.

Explain the role of the page table in virtual memory systems.

Explain the role of the Process Control Block (PCB) in process management.

Explain the role of the Process Identifier (PID) in process management.

Explain the role of the process scheduler in an operating system.

How is a system call different from a regular function call?

Name some page replacement algorithms.

What is a context switch, and why is it necessary in a multitasking operating system?

What is a critical section in concurrent programming?

What is a deadlock avoidance algorithm?

What is a kernel in an operating system

What is a page replacement algorithm, and why is it important in virtual memory systems?

What is a system call, and why is it necessary for user processes to interact with the kernel?

What is a system V IPC (Inter-Process Communication) and how is it used for communication between processes in Unix-like systems?

What is demand paging?

What is pooling?

What is process forking in Unix-like operating systems.

What is the difference between a mutex and a semaphore?

What is the main purpose of multiprogramming?

What is the purpose of a cron job in Unix-like operating systems?

What is the purpose of the boot loader in the bootstrapping process of an operating system?

What is the purpose of the grep command in Unix-like operating systems?

What is the purpose of the ps command in Unix-like operating systems?

What scheduling algorithms are commonly used in process scheduling?

Explain the concept of a memory leak in software development.

Explain the concept of dynamic linking in the context of shared libraries.

Explain the concept of thrashing in virtual memory systems.

Explain the role of a watchdog timer in embedded systems.

Name some RAID levels?

What is a daemon process in Unix-like operating systems?

What is a memory-mapped file?

What is process migration?

What is RAID?

What is the purpose of an interrupt vector table in the context of operating systems?

What is the role of the chroot command in Unix-like operating systems?