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The following question based on operating system topic of computer mcq
(a) Kernel mode only
(b) Kernel and user mode both
(c) User mode only
(d) None of these.
The correct answers to the above question in:
Answer: (b)
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Question : 1
In micro kernel architecture following is false.
a) Intersection takes place only between adjacent layers.
b) Intersection takes place via micro kernel.
c) It supports portability.
d) It supports object-oriented operating system.
Answer »Answer: (a)
Question : 2
The MS-DOS an operating system supports
a) Single user process and multiple threads
b) Multiple user process and single thread
c) Single user process and single thread
d) Multiple user processes and multiple threads.
Answer »Answer: (c)
Question : 3
I/O redirection
a) implies changing the name of a file
b) can be employed to use an exiting file as input file for a program
c) implies connection to programs through a pipe
d) none of the above
Answer »Answer: (b)
Question : 4
Given three switch processes, when they occur match them (1) Clock Interrupt A- The processor encounters a virtual memory address reference for a word that is not in the main memory. (2) I/O Interrupt B- The operating system determines whether the currently running process has been executed for the maximum allowable time slice. (3) Memory fault C- The operating system determines the I/O action that occurs.
a) 1-A, 2-B, 3-C
b) 1-B, 2-C, 3-A
c) 1-B, 2-A, 3-C
d) 1-C, 2-B, 3-A.
Answer »Answer: (b)
Question : 5
In process management of UNIX system, which of the following process states are running states in respect of whether the process is executing in user or kernel mode
a) Ready to run (in memory) state
b) Ready to run (in swappe(D) state
c) Preempted state
d) A and C are true
Answer »Answer: (d)
Question : 6
For Load-time dynamic linking
a) Load module (application module) to be loaded is read into memory.
b) Some of the linking is postponed until execution time.
c) External references to target modules remain in the loaded program.
d) None of these.
Answer »Answer: (a)
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operating system set 1
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operating system Shortcuts and Techniques with Examples
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