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CS401 Quiz No.4 Shared by Marvi

Question # 1 of 10 ( Start time: 07:35:17 PM ) Total Marks: 1
On executing INT 0x21 service 0x3D, if file is successfully opened then
Select correct option:
CF will contain 1
CF will contain 0
ZF will contain 1
ZF will contain 0


Question # 2 of 10 ( Start time: 07:35:50 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 # 3 of 10 ( Start time: 07:36:54 PM ) Total Marks: 1
A FAT32 file system directory entry in DOS consist of how many bytes ?
Select correct option:
16
24
32
64


Question # 4 of 10 ( Start time: 07:37:28 PM ) Total Marks: 1
In the context of video services, if we want to set cursor position which of the following will be the value of AH?
Select correct option:
AH = 01h
AH = 02h
AH = 03h
AH = 04h


Question # 5 of 10 ( Start time: 07:38:01 PM ) Total Marks: 1
Which of the following services of INT 10 is used to write graphic pixel on the screen ?
Select correct option:
0x0A
0x0B
0x0C
0x0D


Question # 6 of 10 ( Start time: 07:39:14 PM ) Total Marks: 1
COM1 is connected with
Select correct option:
IRQ2
IRQ3
IRQ4
IRQ5


Question # 7 of 10 ( Start time: 07:39:48 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 # 8 of 10 ( Start time: 07:40:35 PM ) Total Marks: 1
As compared to _________ , ___________ provides more cooked services.
Select correct option:
BIOS, DOS
DOS,OS
DOS, BIOS
OS, DOS


Question # 9 of 10 ( Start time: 07:41:15 PM ) Total Marks: 1
We can set the current file position in DOS using service number ____
Select correct option:
0x38
0x40
0x42
0x43


Question # 10 of 10 ( Start time: 07:42:06 PM ) Total Marks: 1
In 9pin DB 9 connector, which pin is assigned to RD (Received Data) ?
Select correct option:
1
2 
3
4


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