Unit 2

Which of the following is/ are the part of operating system?

• Kernel services

• Library services

• Application level services

• All of the above

Who provides the interface to access the services of the operating system?

• API

• System call

• Library

• Assembly instruction

Process and Thread both mean the same in Operating System

• YES

• NO

Two processes often require data to be transferred between them. The major activities of an operating system with respect to?

• Error handling

• Resource Management

• Protection

• Communication

What is multithreaded programming?

• It’s a process in which two different processes run simultaneously

• It’s a process in which two or more parts of same process run simultaneously

• It’s a process in which many different process are able to access same information

• It’s a process in which a single process can access information from many sources

In java multi-threading, a thread can be created by

• Extending Thread class

• Implementing Runnable interface

• Using both

• None

Which of these statements is incorrect?

• By multithreading CPU idle time is minimized, and we can take maximum use of it

• By multitasking CPU idle time is minimized, and we can take maximum use of it

• Two thread in Java can have the same priority

• A thread can exist only in two states, running and blocked

Which one of the following is an incorrect statement?

• Thread is a lightweight process.

• We can create only one thread of a process.

• The process is a program under execution.

• Java supports multi threading.

Which one of the following is a correct statement?

• Windows OS is a multiprogramming, multithreaded and multitasking system.

• Windows OS is a multiprogramming, multithreaded and multiprocessing system.

• Windows OS is a multiprogramming, multithreaded and multiprocessing system.

• none of the above.