Operating system

The Operating System is which type of software?

• (A) System software

• (B) Application software

• both A &B

• NONE

Which of the following is not an example of an Operating System?

• (A) Windows 

• (B) Linux

• (C) Mac OS

• (D) MS-Word

_____________  is designed in such a way that it can manage the overall resources and operations of the computer. 

(A) Operating System

(B) File Management

(C) Device management

(D) None of the above

• (A) Operating System

• (B) File Management

• (C) Device management

• (D) None of the above

What is the main function of the command interpreter?

• a) to provide the interface between the API and application program
  

• b) to handle the files in the operating system

• c) to get and execute the next user-specified command

• d) none of the mentioned

To access the services of the operating system, the interface is provided by the _____

• (a)Library
  

• b) System calls

• c) Assembly instructions

• d) API

Which one of the following is not true?

• kernel remains in the memory during the entire computer session
  

• b) kernel is made of various modules which can not be loaded in running operating system

• c) kernel is the first part of the operating system to load into memory during booting

• d) kernel is the program that constitutes the central core of the operating system

What does OS X has?

• monolithic kernel with modules
  
  
  

• b) microkernel

• c) monolithic kernel

• d) hybrid kernel

WHICH of the following is an i/o scheduling algorithm that allocates fixed amount of time to each of i/o request regardless of its size

• FCFS

• ROUND ROBBIN

• SJF

• MULTILEVEL QUEUE

The selection process is carried out by the ?

• CPU Scheduler

• Non preemptive Scheduling

• Preemptive Scheduling

• Dispatcher

Total amount of time a process has been waiting in the ready queue

• Throughput

• Turnaround time

• Response time

• Waiting time