Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Computer Organization and Architecture I/O Interface Interrupt Request Lines
Which of the following is the correct sequence with regard to service routine?
A. Save contents of processor registers
B. Turn the interrupt facility on
C. Service the device whose flag is set
D. Check which flag is set
E. Restore contents of processor registers
Choose the correct answer from the options given below:
1
A, B, C, D, E
2
D, B, C, A, E
3
D, C, B, E, A
4
A, D, C, E, B