1.
_________
is the situation in which a process is waiting on another process, which is
also waiting on another process ... which is waiting on the first process. None
of the processes involved in this circular wait are making progress.
1 Deadlock
2 Starvation
3 Dormant
4 None of the above
Ans ) 1
2.
A
critical region
1 is a piece of code which only one
process executes at a time
2 is a region prone to deadlock
3 is a piece of code which only a
finite number of processes execute
4 is found only in Windows NT
operation system
Ans ) 1
3.
FIFO
scheduling is ________.
1 Preemptive Scheduling
2 Non Preemptive Scheduling
3 Deadline Scheduling
4 Fair share scheduling
Ans ) 2
4.
Switching the CPU to another Process requires
to save state of the old process and loading new process state is called as
__________.
1 Process Blocking
2 Context Switch
3 Time Sharing
4 None of the above
Ans ) 2
5.
The
Banker¿s algorithm is used
1 to prevent deadlock in operating
systems
2 to detect deadlock in operating
systems
3 to rectify a deadlocked state
4 none of the above
Ans ) 1
6.
A thread
1 is a lightweight process where the
context switching is low
2 is a lightweight process where the
context swithching is high
3 is used to speed up paging
4 none of the above
Ans ) 1
7.
______ is a high level abstraction over
Semaphore.
1 Shared memory
2 Message passing
3 Monitor
4 Mutual exclusion
Ans ) 3
8.
Using
Priority Scheduling algorithm, find the average waiting time for the following
set of processes given with their priorities in the order: Process : Burst Time
: Priority respectively .
P1 : 10 : 3 ,
P2 : 1 : 1 ,
P3 : 2 : 4 ,
P4 : 1 : 5 , P5 : 5 : 2.
1 8 milliseconds
2 8.2 milliseconds
3 7.75 milliseconds
4 3 milliseconds
Ans ) 2
9.
Routine
is not loaded until it is called. All routines are kept on disk in a re-locatable
load format. The main program is loaded into memory & is executed. This
type of loading is called _________
1
Static loading
2
Dynamic loading
3
Dynamic linking
4
Overlays
Ans ) 3
10.
In
the running state
1 only
the process which has control of the processor is found
2 all
the processes waiting for I/O to be completed are found
3 all
the processes waiting for the processor are found
4 none
of the above
Ans ) 1
11.
The
Purpose of Co-operating Process is __________.
1
Information Sharing
2
Convenience
3
Computation Speed-Up
4 All of the
above
Ans ) 4
12.
The
kernel of the operating system remains in the primary memory because ________.
1 It is
mostly called (used)
2 It
manages all interrupt calls
3 It
controls all operations in process
4 It is
low level
Ans ) 1
13.
In
one of the deadlock prevention methods, impose a total ordering of all resource
types, and require that each process requests resources in an increasing order
of enumeration. This voilates the _______________ condition of deadlock
1 Mutual
exclusion
2 Hold
and Wait
3
Circular Wait
4 No
Preemption
Ans ) 3
14.
Which
of the following file name extension suggests that the file is Backup copy of
another file ?
1 TXT
2 COM
3 BAS
4 BAK
Ans ) 4
15.
The
degree of Multiprogramming is controlled by
1 CPU
Scheduler
2
Context Switching
3
Long-term Scheduler
4
Medium term Scheduler
Ans ) 3
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