1
GATE CSE 2024 Set 2
MCQ (Single Correct Answer)
+1
-0.33

Consider a computer with a 4 MHz processor. Its DMA controller can transfer 8 bytes in 1 cycle from a device to main memory through cycle stealing at regular intervals. Which one of the following is the data transfer rate (in bits per second) of the DMA controller if 1% of the processor cycles are used for DMA?

A

2,56,000

B

3,200

C

25,60,000

D

32,000

2
GATE CSE 2024 Set 1
MCQ (Single Correct Answer)
+1
-0.33

Which one of the following statements is FALSE?

A

In the cycle stealing mode of DMA, one word of data is transferred between an I/O device and main memory in a stolen cycle

B

For bulk data transfer, the burst mode of DMA has a higher throughput than the cycle stealing mode

C

Programmed I/O mechanism has a better CPU utilization than the interrupt driven I/O mechanism

D

The CPU can start executing an interrupt service routine faster with vectored interrupts than with non-vectored interrupts

3
GATE CSE 2022
MCQ (Single Correct Answer)
+1
-0.33

Which one of the following facilitates transfer of bulk data from hard disk to main memory with the highest throughput?

A
DMA based I/O transfer
B
Interrupt driven I/O transfer
C
Polling based I/O transfer
D
Programmed I/O transfer
4
GATE CSE 2011
MCQ (Single Correct Answer)
+1
-0.3
A computer handles several interrupt sources of which of the following are relevant for this question.

$$ * \,\,\,\,\,\,\,\,\,\,\,$$ Interrupt from $$CPU$$ temperature sensor (raises interrupt if $$CPU$$
$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ temperature is too high)
$$ * \,\,\,\,\,\,\,\,\,\,\,$$ Interrupt from Mouse (raises interrupt if the mouse is moved or a button is
$$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$pressed)
$$ * \,\,\,\,\,\,\,\,\,\,\,$$ Interrupt from Keyboard (raises interrupt when a key is pressed or released)
$$ * \,\,\,\,\,\,\,\,\,\,\,$$ Interrupt from Hard Disk (raises interrupt when a disk read is completed)

Which one of these will be handled at the $$HIGHEST$$ priority?

A
Interrupt from Hard Disk
B
Interrupt from Mouse
C
Interrupt from Keyboard
D
Interrupt from $$CPU$$ temperature sensor
GATE CSE Subjects
Software Engineering
Web Technologies
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12