Blog: CS609 1st Quiz Spring 2013 File 2

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 # 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



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