CS609 - System Programming Quiz No. 01 Solutio Spring 2014

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CS609 - System Programming Quiz No. 01 Solution and Discussion Spring 2014 D

Question # 2 of 10 ( Start time: 10:02:46 AM ) Total Marks: 1

Int 14H __________ can be used to set the line parameter of the UART or COM port.

Select correct option:

Service # 0
Service # 1
Service # 2
None of the given options
Question # 3 of 10 ( Start time: 10:03:26 AM ) Total Marks: 1
Total No. of bytes that can be stored in Keyboard Buffer is____.
Select correct option:



16

32

64

128


Question # 4 of 10 ( Start time: 10:04:31 AM ) Total Marks: 1

In keyboard status byte bit no. 2 and 3 are used for ctrl and alt keys respectively. which of the following condition is used to check that Ctrl + Alt keys are pressed. Where: unsigned char far * scr = (unsigned char far *)(0x00400017);

Select correct option:



if (((*scr)&12)==12)

if (((*scr)&8)==8)

if (((*scr)&4)==4)

if (((*scr)&2)==2)

Question # 5 of 10 ( Start time: 10:06:01 AM ) Total Marks: 1

In case of synchronous communication a timing signal is required to identify the start and end of a bit.

Select correct option:


TRUE

FALSE



Question # 6 of 10 ( Start time: 10:06:22 AM ) Total Marks: 1

DSR stands for __________

Select correct option:

Data set ready

Data service ready

Data stock ready

None of the above


Question # 7 of 10 ( Start time: 10:07:25 AM ) Total Marks: 1

Int 14H __________ can be used to receive a byte.

Select correct option:
Service # 0

Service # 1

Service # 2

None of the given options

Question # 8 of 10 ( Start time: 10:08:56 AM ) Total Marks: 1

At IRQ 7 Interrupt # ___ is used.

Select correct option:



0x0A

0x0B

0x0C

x0F



Question # 9 of 10 ( Start time: 10:09:10 AM ) Total Marks: 1

BIOS supports __________ UARTS as COM Ports.

Select correct option:


6

4

3

2





Quiz No.01 is contain on 10 Questions each question have 1 marks and 90 second to answer...



Question # 1 of 10 ( Start time: 10:01:36 AM ) Total Marks: 1

The baud rate is set in accordance with the divisor value loaded within the UART internal registers base +0 and base +1.

Select correct option:

TRUE

FALSE

Question # 10 of 10 ( Start time: 10:09:25 AM ) Total Marks: 1

We have set the bit No. 7 of IMR(Interrupt Mask Register) to unmask the Interrupt so that interrupt _____ can occur at ____ line.

Select correct option:



0xf ,IRQ 7

0xa, IRQ 6

0x8, IRQ 5

0x6, IRQ 2