Operating system mcqs process structures

YOU CAN DOWNLOAD 200+ SUBJECTS PDF BOOK FOR COMPETITIVE EXAMINATIONS

CLICK HERE TO DOWNLOAD

Operating system mcqs process structures

Question 6 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is an ISR?
A
Information Service Request
B
Interrupt Service Request
C
Interrupt Service Routine
D
Information Service Routine
Question 7 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the layered approach of Operating Systems .....
A
Bottom Layer(0) is the User interface
B
Highest Layer(N) is the User interface
C
Bottom Layer(N) is the hardware
D
Highest Layer(N) is the hardware
Question 8 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does the software trigger an interrupt?
A
Sending signals to CPU through bus
B
Executing a special operation called system call
C
Executing a special program called system program
D
Executing a special program called interrupt trigger program
Question 9 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is an interrupt vector?
A
It is an address that is indexed to an interrupt handler
B
It is a unique device number that is indexed by an address
C
It is a unique identity given to an interrupt
D
None of the mentioned
Question 10 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In an interrupt driven input/output .....
A
the CPU uses polling to watch the control bit constantly, looping to see if a device is ready
B
the CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available
C
the CPU receives an interrupt when the device is ready for the next byte
D
the CPU runs a user written code and does accordingly
There are 10 questions to complete.