Operating system

What is the most used operating system in the world?

• Linux

• MacOS

• Windows

• Ubuntu

1. What is an operating system?

• a) interface between the hardware and application programs

• b) collection of programs that manages hardware resources

• c) system service provider to the application programs

• d) all of the mentioned

1. What is an operating system?

• a) interface between the hardware and application programs

• b) collection of programs that manages hardware resources

• c) system service provider to the application programs

• d) all of the mentioned

2. 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

3. To access the services of the operating system, the interface is provided by the ___________

• a) Library

• b) System calls

• c) Assembly instructions

• d) API

4.  Where is the interrupt in operating system?

• a) either low or high memory (depending on the location of interrupt vector)

• b) in the low memory

• c) in the high memory

• d) none of the mentioned

5. Which one of the following is not a real time operating system?

• a) RTLinux

• b) Palm OS

• c) QNX

• d) VxWorks

6. In a timeshare operating system, when the time slot assigned to a process is completed, the process switches from the current state to?

• a) Suspended state

• b) Terminated state

• c) Ready state

• d) Blocked state

7. For an effective operating system, when to check for deadlock?

• a) every time a resource request is made at fixed time intervals

• b) at fixed time intervals

• c) every time a resource request is made

• d) none of the mentioned

8. To recover from failures in the network operations _____________ information may be maintained.

• a) operating system

• b) ip address

• c) stateless

• d) state