AMCAT Operating Systems Fundamentals

Question 1

Which of the following scheduling algorithms can lead to starvation of low-priority processes?

Accepted Answer

Priority Scheduling (without aging)

Answer

First Come First Served (FCFS)

Answer

Round Robin (RR)

Answer

Shortest Remaining Time First (SRTF)

Question 2

What is the primary difference between a process and a thread?

Accepted Answer

Threads within the same process share memory space, while processes have separate memory spaces

Answer

A process runs faster than a thread

Answer

A thread is an independent program, while a process is a lightweight unit

Answer

Processes can run concurrently but threads cannot

Question 3

In virtual memory management, what is a page fault?

Accepted Answer

An event that occurs when a program accesses a page that is not currently in physical memory (RAM)

Answer

An error in the page table structure

Answer

A corruption of data on the hard disk

Answer

A failure in the memory allocation algorithm

Question 4

Which of the following is NOT a necessary condition for deadlock according to Coffman's conditions?

Accepted Answer

Preemption

Answer

Mutual Exclusion

Answer

Hold and Wait

Answer

Circular Wait

Question 5

What is the purpose of a semaphore in operating systems?

Accepted Answer

To synchronize concurrent processes and control access to shared resources

Answer

To allocate memory to processes

Answer

To schedule CPU time for processes

Answer

To manage file system operations

Question 6

In the context of memory management, what is internal fragmentation?

Accepted Answer

Wasted space within an allocated memory block because the block is larger than the requested size

Answer

Wasted space between allocated memory blocks

Answer

Memory corruption due to buffer overflow

Answer

Loss of data due to power failure