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CS401 Quiz No.4 Shared by Emaan

Question # 1 of 10 ( Start time: 07:44:02 PM ) Total Marks: 1
COM2 is connected with
Select correct option:
IRQ2
IRQ3
IRQ4
IRQ5


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
"INT13 --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:
00h
02h
09h
10h


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

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