Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Computer Organization and Architecture I/O Interface Modes of Data Transfer
Which of the following statements about Direct Memory Access (DMA) are true?
A. During DMA, the CPU has no control over the memory buses.
B. DMA improves the efficiency of data transfer between fast storage media and memory.
C. DMA involves continuous CPU intervention during data transfer.
D. DMA uses a DMA controller to manage the transfer between I/O devices and memory.
Choose the correct answer from the options given below:
1
A and C Only
2
B and D Only
3
A, B and D Only
4
A, C and D Only
5
Question Not Attempted