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Important questions about Operating Systems. Operating Systems MCQ questions with answers. Operating Systems exam questions and answers for students and interviews.

1. Which among the following are the components of windows registry?

Options

A : Keys

B : SubKeys

C : Values

D : All the above

10. Which among the following are not the children of Swapper or Scheduler?

Options

A : Process Dispatcher

B : Vhand

C : Dbflush

D : All the above

8. Which among the following is not aprocess state in unix?

Options

A : Running

B : Runnable

C : Zombie

D : Stopped

9. A computer assisted method for the recording and analyzing of existing or hypothetical systems is

Options

A : Data transmission

B : Data capture

C : Data flow

D : Data processing

10. The program that is responsible for loading the operating system into RAM is the _______.

Options

A : BIOS

B : Bootstrap Program

C : Drive- Driver

D : Supervisor Program

1. A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where the old one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java -classpath /test:/home/bob/downloads/*.jar games.Chess Bob's CLASSPATH is set (at login time) to: /usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?

Options

A : /test/Chess.class

B : /home/bob/Chess.class

C : /test/games/Chess.class

D : /user/lib/games/Chess.class

2. Default read write and execute permissions given to a file for owner, group and others are

Options

A : 6-4-4

B : 6-4-2

C : 6-4-6

D : 6-6-6

3. The list of coded instructions is called

Options

A : Algorithm

B : Flowchart

C : Utility programs

D : Computer program

4. Which of the following is Not an Operating System?

Options

A : UNIX

B : Windows NT

C : C++

D : DOS

5. What type of operating system uses the NTFS file system ?

Options

A : Windows

B : Mac OS X

C : Unix

D : All of these

7. High level language is also called as ?

Options

A : Business oriented language

B : Mathematically oriented language

C : Problem oriented language

D : All of above

5. By default, a Linux user falls under which group?

Options

A : same as userid (UPG)

B : system

C : staff

D : others

3. A Map is an Array,which contains the addresses of the free space in swap device that are allocatable resources,and the number of the resource unit available there.

Options

A : TRUE

B : FALSE

C :

D :

4. Which memory management technique involves dividing the memory into fixed sized blocks ?

Options

A : Paging

B : Scaling

C : Whiping

D : Tracking

8. getppid() system call is used to bias the existing priority of a process

Options

A : TRUE

B : FALSE

C :

D :

10. The PS command prints the process status for only some of the running processes.

Options

A : TRUE

B : FALSE

C :

D :

9. The main interface in Windows and OS X is __________ interface.

Options

A : Command-line

B : Embedded

C : Neural

D : Graphical

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