Welcome to Operating System Quiz, Intermediate Level !!

Question 1. Consider a set of n tasks with known runtimes r1, r2, ? rn to be run on a uniprocessor machine. Which of the following processor scheduling algorithms will result in the maximum throughput?





Question 2. In UNIX based systems,To build a modularized kernel, the kernel-headers and kernel-source packages must first be installed. Where will you find the kernel-headers and kernel-source





Question 3. Which of the following does not interrupt a running process?

A device


Scheduler process

Power failure

Question 4. In a multithreaded environment _______.

Each thread is allocated with new memory from main memory.

Main thread terminates after the termination of child threads.

Every process can have only one thread.

none of the above

Question 5. Where does the swap space reside ?




On-chip cache

Question 6. A thread is usually defined as a "light weight process" because an operating system (OS) maintains smaller data structures for a thread than for a process. In relation to this, which of the followings is TRUE?

On per-thread basis, the OS maintains only CPU register state

The OS does not maintain a separate stack for each thread

On per-thread basis, the OS does not maintain virtual memory state

On per thread basis, the OS maintains only scheduling and accounting information

Question 7. Which of the following statements is false?

Virtual memory implements the translation of a program's address space into physical memory address space

Virtual memory allows each program to exceed the size of the primary memory

Virtual memory increases the degree of multiprogramming

Virtual memory reduces the context switching overhead

Question 8. In the ___________ method of data transfer, the participation of the processor is eliminated during data transfer.



Direct Memory Access

Indirect Memory Access

Question 9. ______ is a high level abstraction over Semaphore

Shared memory

Message passing


Mutual exclusion

Question 10. The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by



System Call