Process

Question 1
Dispatch latency is defined as
A
the speed of dispatching a process from running to the ready state
B
the time of dispatching a process from running to ready state and keeping the CPU idle
C
the time to stop one process and start running another one
D
none of these
ISRO CSE 2020   Operating System
Question 2
The operating system and the other processes are protected from being modified by an already running process because
A
they run at different time instants and not in parallel
B
they are in different logical addresses
C
they use a protection algorithm in the scheduler
D
every address generated by the CPU is being checked against the relocation and limit parameters
ISRO CSE 2020   Operating System
Question 3
Consider the following statements about process state transitions for a system using preemptive scheduling.

I. A running process can move to ready state.
II. A ready process can move to running state.
III. A blocked process can move to running state.
IV. A blocked process can move to ready state.

Which of the above statements are TRUE?
A
I, II and III only
B
II and III only
C
I, II and IV only
D
I, II, III and IV only
GATE CSE 2020   Operating System
Question 4
Working Set (t,k) at an instant of time t is
A
the set of k future references that the OS will make
B
the set of future references that the OS will make in next t unit of time
C
the set of k references with high frequency
D
the k set of pages that have been referenced in the last t time units
ISRO CSE 2016   Operating System
Question 5
Suppose a system contains n processes and system uses the round-robin algorithm for CPU scheduling then which data structure is best suited ready queue of the process
A
stack
B
queue
C
circular queue
D
tree
ISRO CSE 2015   Operating System
Question 6
The maximum number of processes that can be in Ready state for a computer system with n CPUs is
A
n
B
n^{2}
C
2^{n}
D
Independent of n
GATE CSE 2015 SET-3   Operating System
Question 7
The state of a process after it encounters an I/O instruction is?
A
Ready
B
Blocked
C
Idle
D
Running
ISRO CSE 2013   Operating System
Question 8
There are three processes in the ready queue. When the currently running process requests for I/O how many process switches take place?
A
1
B
2
C
3
D
4
ISRO CSE 2011   Operating System
Question 9
Process is
A
A program in high level language kept on disk
B
Contents of main memory
C
A program in execution
D
A job in secondary memory
ISRO CSE 2009   Operating System
Question 10
Special software to create a job queue is called a
A
Driver
B
Spooler
C
Interpreter
D
Linkage editor
ISRO CSE 2009   Operating System
There are 10 questions to complete.

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