Advance operating system MCQ questions and answers
1.
What is operating system?
A. collection
of programs that manages hardware resources
B. system
service provider to the application programs
C. link
to interface the hardware and application programs
D. all
of the mentioned
D.all of the mentioned
2. To
access the services of operating system, the interface is provided by the
A. system
calls
B. api
C. library
D. assembly
instructions
A.system calls
3.
Which one of the following is not true?
A. kernel
is the program that constitutes the central core of the operating system
B. kernel
is the first part of operating system to load into memory during booting
C. kernel
is made of various modules which can not be loaded in running operating system
D. kernel
remains in the memory during the entire computer session
C.kernel is made of various modules which
can not be loaded in running operating system
4.
Which one of the following error will be handle by the operating system?
A. power
failure
B. lack
of paper in printer
C. connection
failure in the network
D. all
of the mentioned
D.all of the mentioned
5.
The scheme used in the above question is known as _______ or ________.
A. sector
sparing
B. forwarding
C. backwarding
D. sector
utilization
B.forwarding
6. By
operating system, the resource management can be done via
A. time
division multiplexing
B. space
division multiplexing
C. both
(a) and (b)
D. none
of the mentioned
C.both (a) and (b)
7. .
If a process fails, most operating system write the error information to a
A. log
file
B. another
running process
C. new
file
D. none
of the mentioned
A.log file
8.
Which facility dynamically adds probes to a running system, both in user
processes and in the kernel?
A. dtrace
B. dlocate
C. dmap
D. dadd
A.dtrace
9.
Which one of the following is not a real time operating system?
A. vxworks
B. windows
ce
C. rtlinux
D. palm
os
D.palm os
10.
The OS X has
A. monolithic
kernel
B. hybrid
kernel
C. microkernel
D. monolithic
kernel with modules
B.hybrid kernel
11.
The systems which allows only one process execution at a time, are called
A. uniprogramming
systems
B. uniprocessing
systems
C. unitasking
systems
D. none
of the mentioned
A.uniprogramming systems
12.
In operating system, each process has its own
A. address
space and global variables
B. open
files
C. pending
alarms, signals and signal handlers
D. all
of the mentioned
D.all of the mentioned
13.
In Unix, Which system call creates the new process?
A. fork
B. create
C. new
D. none
of the mentioned
A.fork
14. A
process can be terminated due to
A. normal
exit
B. fatal
error
C. killed
by another process
D. all
of the mentioned
D.all of the mentioned
15.
What is the ready state of a process?
A. when
process is scheduled to run after some execution
B. when
process is unable to run until some task has been completed
C. when
process is using the cpu
D. none
of the mentioned
A.when process is scheduled to run after
some execution
16.
What is interprocess communication?
A. communication
within the process
B. communication
between two process
C. communication
between two threads of same process
D. none
of the mentioned
B.communication between two process
17. A
set of processes is deadlock if
A. each
process is blocked and will remain so forever
B. each
process is terminated
C. all
processes are trying to kill each other
D. none
of the mentioned
A.each process is blocked and will remain so
forever
18. A
process stack does not contain
A. function
parameters
B. local
variables
C. return
addresses
D. pid
of child process
D.pid of child process
19.
Which system call returns the process identifier of a terminated child?
A. wait
B. exit
C. fork
D. get
A.wait
20.
The address of the next instruction to be executed by the current process is
provided by the
A. cpu
registers
B. program
counter
C. process
stack
D. pipe
B.program counter
21.
The number of processes completed per unit time is known as __________.
A. output
B. throughput
C. efficiency
D. capacity
B.throughput
22.
The state of a process is defined by :
A. the
final activity of the process
B. the
activity just executed by the process
C. the
activity to next be executed by the process
D. the
current activity of the process
D.the current activity of the process
23.
The Process Control Block is :
A. process
type variable
B. data
structure
C. a
secondary storage section
D. a
block in memory
B.data structure
24.
The entry of all the PCBs of the current processes is in :
A. process
register
B. program
counter
C. process
table
D. process
unit
C.process table
25.
The degree of multi-programming is :
A. the
number of processes executed per unit time
B. the
number of processes in the ready queue
C. the
number of processes in the i/o queue
D. the
number of processes in memory
D.the number of processes in memory
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