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CS401 Quiz No.4 Shared by Aniqa Zulfiqar

Question # 1 of 10 ( Start time: 08:08:23 PM ) Total Marks: 1
"INT13 --BIOS disk services" generally uses which register to return the 'error flag' ?
Select correct option:
CF
DL
AH
AL


Question # 2 of 10 ( Start time: 08:08:50 PM ) Total Marks: 1
In the context of video services, if we want to scroll the window up which of the following will be the value of AH?
Select correct option:
AH = 05h
AH = 06h
AH = 07h
AH = 08h


Question # 3 of 10 ( Start time: 08:15:18 PM ) Total Marks: 1
In multitasking environment, which of the following structure is used to maintain the ordering of active PCBs ?
Select correct option:
Array
Register
Linked List
Stack


Question # 4 of 10 ( Start time: 08:16:05 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: 08:16:22 PM ) Total Marks: 1
We can set the current file position in DOS using service number ____
Select correct option:
0x38
0x40
0x42
0x43


Question # 6 of 10 ( Start time: 08:16:54 PM ) Total Marks: 1
Which of the following registers hold the page number for using the write string service of INT 10?
Select correct option:
AH
BL
CL
BH


Question # 7 of 10 ( Start time: 08:17:23 PM ) Total Marks: 1
In 9pin DB 9 connector, which pin is assigned to RD (Received Data) ?
Select correct option:
1
2
3
4


Question # 8 of 10 ( Start time: 08:17:47 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 # 9 of 10 ( Start time: 08:18:16 PM ) Total Marks: 1
The 'program segment prefix' for com files is of size:
Select correct option:
64 bytes
128 bytes
256 bytes
512 bytes


Question # 10 of 10 ( Start time: 08:19:00 PM ) Total Marks: 1
Which of the following services of INT 10 is used for writing the string?
Select correct option:
0x12
0x13
0x11
0x10



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