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CS401 Quiz No.4 Shared by Aish Khan

Question # 1 of 10 ( Start time: 07:11:33 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 # 2 of 10 ( Start time: 07:12:59 PM ) Total Marks: 1
_________ byte of DOS data buffer stores the maximum characters buffer can hold.
Select correct option:
first
second
third
last


Question # 3 of 10 ( Start time: 07:14:31 PM ) Total Marks: 1
The maximum length of DOS command line parameters is
Select correct option:
64 bits
127 bits
256 bits
512 bits


Question # 4 of 10 ( Start time: 07:15:14 PM ) Total Marks: 1
The INT 0x13 service 0x08 is use to
Select correct option:
Read disk sector
Write disk sector
Reset disk sector
Get drive parameter


Question # 5 of 10 ( Start time: 07:15:56 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 # 6 of 10 ( Start time: 07:17:17 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 # 7 of 10 ( Start time: 07:18:37 PM ) Total Marks: 1
INT 0x13 service 0x03 is used to _________.
Select correct option:
Read disk sector
Write disk sector
Reset disk sector
Get drive parameter


Question # 8 of 10 ( Start time: 07:19:41 PM ) Total Marks: 1
COM1 is connected with
Select correct option:
IRQ2
IRQ3
IRQ4
IRQ5


Question # 9 of 10 ( Start time: 07:20:58 PM ) Total Marks: 1
In 9pin DB 9 connector, which pin is assigned to Signal Ground ?
Select correct option:
3
4
5
6


Question # 10 of 10 ( Start time: 07:21:51 PM ) Total Marks: 1
Which of the following services of INT 10 is used to get the video font information?
Select correct option:
1129h
1130h
1128h
1127h



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