Question # 1 of 10 ( Start time:
07 :44 :02 PM ) Total Marks: 1
COM2 is connected with
Select correct option :
IRQ 2
IRQ 3
IRQ 4
IRQ 5
Question # 2 of 10 ( Start time:
07 :45 :41 PM ) Total Marks: 1
Hard disk MBR ( Master Boot Record )
is of size
Select correct option :
446 bytes
350 bytes
512 bytes
256 bytes
Question # 3 of 10 ( Start time:
07 :46 :28 PM ) Total Marks: 1
In interrupt masking , We use ________
to get control from the program
without letting the program know about
it.
Select correct option :
IRQ 0
IRQ 1
IRQ 2
IRQ 3
Question # 4 of 10 ( Start time:
07 :47 :19 PM ) Total Marks: 1
As compared to _________ ,
___________ provides more cooked
services.
Select correct option :
BIOS, DOS
DOS,OS
DOS, BIOS
OS, DOS
Question # 5 of 10 ( Start time:
07 :47 :31 PM ) Total Marks: 1
Which of the following INT 21 service
is used to read character from
standard input ?
Select correct option :
00
01
02
03
Question # 6 of 10 ( Start time:
07 :48 :04 PM ) Total Marks: 1
" INT 13 - - BIOS disk services" generally
uses which register to return the 'error
code ' ?
Select correct option :
CF
DL
AH
AL
Question # 7 of 10 ( Start time:
07 :48 :18 PM ) Total Marks: 1
In multitasking , which of the following
interrupts is used as scheduler during
context switching ?
Select correct option :
INT 21
INT 16
INT 13
INT 8
Question # 8 of 10 ( Start time:
07 :49 :39 PM ) Total Marks: 1
In case of COM file , maximum length
of parameters passed through command
line can be ___
Select correct option :
63 bytes
127 bytes
255 bytes
511 bytes
Question # 9 of 10 ( Start time:
07 :50 :29 PM ) Total Marks: 1
Which of the following service of INT
21 is used to write a string on standard
output?
Select correct option :
00 h
02 h
09 h
10 h
Question # 10 of 10 ( Start time :
07 :51 :32 PM ) Total Marks: 1
____________ is the highest priority
interrupt in interrupt controller.
Select correct option :
IRQ 0
IRQ 1
IRQ 2
IRQ 3
