CS401 Quiz No.4 Shared by Nida Shabbir

Question # 1 of 10 ( Start time: 07:24:46 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 # 2 of 10 ( Start time: 07:26:09 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 # 3 of 10 ( Start time: 07:26:38 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 # 4 of 10 ( Start time: 07:27:13 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: 07:28:08 PM ) Total Marks: 1
BPB stands for
Select correct option:
Basic Parameter Block
Bios Precise Block
Basic Precise Block
Bios Parameter Block


Question # 6 of 10 ( Start time: 07:29:16 PM ) Total Marks: 1
Which of the following is used to terminate a string in assembly language?
Select correct option:
!
#
$
;


Question # 7 of 10 ( Start time: 07:29:47 PM ) Total Marks: 1
_________ byte of DOS data buffer stores the maximum characters buffer can hold.
Select correct option:
first
second
third
last


Question # 8 of 10 ( Start time: 07:30:43 PM ) Total Marks: 1
Device drivers can be divided into ___ major categories:
Select correct option:
5
4
3
2


Question # 9 of 10 ( Start time: 07:32:03 PM ) Total Marks: 1
On executing INT 0x21--service 0x3D, if file can't be opened then
Select correct option:
CF will contain 1
CF will contain 0
ZF will contain 1
ZF will contain 0


Question # 10 of 10 ( Start time: 07:32:47 PM ) Total Marks: 1
In 9pin DB 9 connector, which pin is assigned to RD (Received Data) ?
Select correct option:
1
2
3
4