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MCQs Library
Browse subject-wise multiple choice questions, review answers quickly, and start a test from the same section.
Questions
| Code | Question | Option A | Option B | Option C | Option D | Answer |
|---|---|---|---|---|---|---|
| CS401 |
Programmable Interrupt Controller Has Two Ports 20 And 21. Port 20 Is The Control Port While Port 21 Is __________
|
The Interrupt Mask Register
|
Interrupt Port
|
Output Port
|
Input Port
|
A |
| CS401 |
Regarding Assembler Which Statement Is True:
|
Assembler Converts Mnemonics To The Corresponding Opcode
|
Assembler Converts Opcode To The Corresponding Mnemonics
|
Assembler Executes The Assembly Code All At Once
|
Assembler Executes The Assembly Code Step By Step
|
A |
| CS401 |
Register Holds The Address Of Next Instruction Is To Be Executed
|
Base Pointer
|
Code Segment
|
Source Index
|
Program Counter
|
D |
| CS401 |
Rep Will Always
|
Incremented Cx By 1
|
Incremented Cx By 2
|
Decremented Cx By 1
|
Decremented Cx By 2
|
C |
| CS401 |
Retf Will Pop The Offset In The
|
Bp
|
Ip
|
Sp
|
Si
|
B |
| CS401 |
Retf Will Pop The Segment Address In The
|
Cs Register
|
Ds Register
|
Ss Register
|
Es Register
|
A |
| CS401 |
Shifting The -15 Two Bit Sar
|
-7
|
7
|
-8
|
8
|
B |
| CS401 |
Single Step Interrupt Is
|
Hardware Interrupt
|
Like Divide By Zero Interrupt
|
Like Divide By 1 Interrupt
|
Software Interrupt
|
B |
| CS401 |
Sp Is Associated With ___________ By Default
|
Ss
|
Ds
|
Cs
|
Es
|
A |
| CS401 |
Stack Is A That Behaves In A First In Last Out Manner.
|
Program
|
Data Structure
|
Heap
|
None Of The Given
|
B |
| CS401 |
Suppose Al Contains 5 Decimal Then After Two Left Shifts Produces The Value As
|
5
|
10
|
15
|
20
|
B |
| CS401 |
The 8088 Stack Works On
|
Word Sized Elements
|
Byte Sized Elements
|
Double Sized Element
|
Nible Sized Element
|
A |
| CS401 |
The Address Bus Is Unidirectional And Address Always Travels From Processor To Memory
|
True
|
False
|
Na
|
Na
|
A |
| CS401 |
The Basic Function Of Scas Instruction Is To
|
Compare
|
Scan
|
Sort
|
Move Data
|
A |
| CS401 |
The Bits Of The __________ Work Independently And Individually
|
Index Register
|
Base Register
|
Flags Register
|
Accumulator
|
C |
| CS401 |
The Clear Screen Operation Initialize Whole Block Of Memory
|
0741
|
0417
|
0714
|
0174
|
D |
| CS401 |
The Execution Of The Instruction “Mov Word [Es : 0] 0X0741” Will Print Character “A” On Screen Background Color Of The Screen Will Be
|
Black
|
White
|
Red
|
Blue
|
A |
| CS401 |
The Execution Of The Instruction “Mov Word [Es : 160] 0X1230” Will Print A Character “0” On The Screen At
|
Second Column Of First Row
|
First Column Of Second Row
|
Second Column Of Second Row
|
First Column Of Third Row
|
B |
| CS401 |
The Execution Of The Instruction “Mov Word [Es: Di] 0X0720”
|
Will Clear Next Character On Screen
|
Will Print “20” At Top Left Of The Screen
|
Will Print “20” At Top Right Of The Screen
|
Will Move Di At Location 0720 On The Screen
|
A |
| CS401 |
The Extended Ascii Has
|
64 Characters
|
128 Characters
|
256 Characters
|
502 Characters
|
B |