Operating systems concept MCQ Test 40

UGC-NET/GATE Multiple Choice Questions for Operating System.

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Question 1
In the bounded buffer problem :
A
there is only one buffer
B
there are n buffers ( n being greater than one but finite)
C
there are infinite buffers
D
the buffer size is bounded
Question 2
The two steps of a process execution are :
  1. I/O Burst
  2. CPU Burst
  3. Memory Burst
  4. OS Burst
A
I and III
B
II and III
C
II, III and IV
D
I and II
Question 3
Which of the following does not interrupt a running process ? (GATE CS 2001)
A
A device
B
Timer
C
Scheduler process
D
Power failure
Question 4
User-Friendly Systems are:
A
easy to develop
B
common among traditional mainframe operating systems
C
becoming more common
D
None of the above
Question 5
Real time streaming is most useful for :
A
short video clips
B
long video clips
C
extremely short and low quality videos
D
none of the above
Question 6
If several requests have different deadlines that are relaticely close together, then using the SCAN EDF algorithm :
A
the SCAN ordering will service the requests in that batch
B
the EDF ordering will service the requests in that batch
C
the FCFS ordering will service the requests in that batch
D
none of the above
Question 7
The factors that define QoS are :
  1. Throughput
  2. Jitter
  3. Delay
  4. Media
  5. Reliability
  6. Burst times
  7. All of these
b, c and e
A
I and III
B
II ,III and V
C
II, III and IV
D
I,II,III and V
Question 8
Header are ... when data packet moves from upper to the lower layers ?
A
Modified
B
removed
C
added
D
none of the above
Question 9
What are temporal and physical separation ?
  1. Physical separation in which process use different physical objects like separate printers
  2. Temporal separation in which process having different security requirement at different times
  3. Physical separation In which users operate under illusion that no other processes exist
  4. Temporal sepration In which processes conceal their datomputations
A
I and III
B
II and III
C
II, III and IV
D
I and II
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