CS401 Final Term Solved MCQs File 1 by Junaid

Q1. Suppose AL contains 5 decimal then after two left shifts produces the value as

1. 5
2. 10
3. 15
4. 20 (Page 52)

Q2. In graphics mode a location in video memory corresponds to a _____________ on the screen.

1. Line
2. Dot (Page 149)
3. Circle
4. Rectangle

Q3. Creation of threads can be

1. Static
2. Dynamic (Page 141)
3. Easy
4. Difficult

Q4. The thread registration code initializes the PCB and adds it to the linked list so that the __________ will give it a turn.

1. Assembler
2. Scheduler (Page 141)
3. linked
4. Debugger

Q5. VESA VBE 2.0 is a standard for

1. High resolution Mode (Page 180)
2. Low resolution Mode
3. Medium resolution Mode
4. Very High resolution Mode

Q6. Which of the following gives the more logical view of the storage medium

1. BIOS
2. DOS (Page 155)
3. Both
4. None

Q7. Which of the following IRQs is derived by a key board?

1. IRQ 0
2. IRQ 1 (Page 114)
3. IRQ 2
4. IRQ 3

Q8. Which of the following IRQs is used for Floppy disk drive?

1. IRQ 4
2. IRQ 5
3. IRQ 6 (Page 114)
4. IRQ 7

Q9. Which of the following pins of a parallel port connector are grounded?

1. 10-18
2. 18-25 (Page 125)
3. 25-32
4. 32-39

Q10. The physical address of IDT (Interrupt Descriptor Table) is stored in _______

1. GDTR
2. IDTR (Page 182)
3. IVT
4. IDTT
5. In NASM an imported symbol is declared with the ............................ while and exported symbol is declared

With the............................

1. Global directive, External directive
2. External directive, Global directive (Page 189)
3. Home Directive, Foreign Directive
4. Foreign Directive, Home Directive
5. In 68K processors there is a ........................ program counter (PC) that holds the address of currently executing

Instruction

1. 8bit
2. 16bit
3. 32bit (Page 191)
4. 64bit

Q13. To reserve 8-bits in memory ___ directive is used.

1. db. (Page 25)
2. dw
3. dn
4. dd

Q14. In the “mov ax, 5” 5 is the __________ operand.

1. Source (Page 18)
2. Destination
3. Memory
4. Register

Q15. RETF will pop the segment address in the

1. CS register (Page 72)
2. DS register
3. SS register
4. ES register

Q16. For the execution of the instruction “DIV BL”, the implied dividend will be stored in

1. AX (Page 85)
2. BX
3. CX
4. DX

Q17. When a number is divided by zero “A Division by 0” interrupt is generated. Which instruction is used for this?

Purpose

1. INT 0
2. INT 1
3. INT 2
4. This interrupt is generated automatically (Page 107)
5. INT 21 service 01H is used to read character from standard input with echo. It returns the result in ______

Register.

1. AL (Page 152)
2. BL
3. CL
4. BH

Q19. BIOS sees the disks as

1. Logical storage
2. Raw storage (Page 155)
3. In the form of sectors only
4. In the form of tracks only

Q20. In 9pin DB 9, which pin number is assigned to CD (Carrier Detect)?

1. 1 (Page 171)
2. 2
3. 3
4. 4

Q21. In 9pin DB 9, Signal ground is assigned on pin number

1. 4
2. 5 (Page 171)
3. 6
4. 3