Operating System Test 2 Computer Subject
Operating System Test 2 Computer Subject
Question 31
The page replacement policy that sometimes leads to more page faults when the size of the memory is increased is _____?
FIFO can cause Belady’s anomaly, leading to more page faults as memory size increases.
Not clear enough?
Question 32
The only state transition that is initiated by the user process itself is _____?
A process can voluntarily block itself when waiting for an event.
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Question 33
Which one of the following is not a real time operating system?
Palm OS is not a real-time OS, unlike RTLinux, QNX, and VxWorks.
Not clear enough?
Question 34
Fragmentation is _____?
Fragmentation refers to unused memory fragments within allocated memory blocks.
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Question 35
The OS X has _____?
Mac OS X uses a hybrid kernel called XNU, combining microkernel and monolithic features.
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Question 36
Which of the following are real-time systems?
Aircraft control systems and process control systems are real-time applications.
Not clear enough?
Question 37
What type of memory stores data in a swap file on a hard drive?
Virtual memory uses a swap file on disk to extend available RAM.
Not clear enough?
Question 38
The systems which allow only one process execution at a time, are called _____?
All terms describe systems that allow only one process to run at a time.
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Question 39
Context switching is part of _____?
Context switching occurs during interrupt handling when CPU control changes between processes.
Not clear enough?
Question 40
Which method is the best among file allocation methods?
Indexed allocation is considered best as it supports direct access without external fragmentation.
Not clear enough?
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