Basics MCQ’s

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This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Basics”.

1. To access the services of operating system, the interface is provided by the ___________
a) System calls
b) API
c) Library
d) Assembly instructions

2. Which one of the following is not true?
a) kernel is the program that constitutes the central core of the operating system
b) kernel is the first part of operating system to load into memory during booting
c) kernel is made of various modules which can not be loaded in running operating system
d) kernel remains in the memory during the entire computer session

3. What is an operating system?
a) collection of programs that manages hardware resources
b) system service provider to the application programs
c) interface between the hardware and application programs
d) all of the mentioned

4. Which one of the following error will be handle by the operating system?
a) power failure
b) lack of paper in printer
c) connection failure in the network
d) all of the mentioned

5. In Operating Systems, which of the following is/are CPU scheduling algorithms?
a) Round Robin
b) Shortest Job First
c) Priority
d) All of the mentioned

6. Which facility dynamically adds probes to a running system, both in user processes and in the kernel?
a) DTrace
b) DLocate
c) DMap
d) DAdd

7. What is the main function of the command interpreter?
a) to get and execute the next user-specified command
b) to provide the interface between the API and application program
c) to handle the files in operating system
d) none of the mentioned

8. If a process fails, most operating system write the error information to a ______
a) log file
b) another running process
c) new file
d) none of the mentioned

9. Which one of the following is not a real time operating system?
a) VxWorks
b) QNX
c) RTLinux
d) Palm OS

10. The OS X has ____________
a) monolithic kernel
b) hybrid kernel
c) microkernel
d) monolithic kernel with modules

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