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The following question based on operating system topic of computer mcq
(a) first come first served
(b) shortest seek time first
(c) scan
(d) None of these
The correct answers to the above question in:
Answer: (c)
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Question : 1
Hard real-time tasks are
a) A real time task that do not require dead line constraints.
b) A real time task that requires dead line constraints.
c) A task independent to time when it occurs.
d) None of these.
Answer »Answer: (b)
Question : 2
The operating system control tables maintain process tables, because
a) These tables manages I/O devices
b) These tables manages files
c) These tables manages memory
d) None of these.
Answer »Answer: (d)
Question : 3
Real-time systems are
a) primarily used on mainframe computers
b) used for monitoring events as they occur
c) used for program development
d) used for real-time interactive users.
Answer »Answer: (b)
Question : 4
The following RAID level employer parallel access technique and single redundant disk
a) RAID level 0
b) RAID level 1
c) RAID level 2
d) RAID level 3
Answer »Answer: (d)
Question : 5
The access time in disk scheduling is
a) The time taken to position the head at the track.
b) The time taken to reach the beginning of the sector of the track.
c) The sum of seek time and rotational delay.
d) None of these.
Answer »Answer: (c)
Question : 6
In the pure User Level Threads (ULT) (i) Thread management is done by application, (ii) Thread management is done by kernel, (iii) Kernel is not aware of the existence of thread, (iv) Application program interface (API) to the kernel thread facility.
a) i, iii are true
b) i, ii and iii are true
c) All are false
d) None of these are true
Answer »Answer: (a)
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