CS401 Midterm Solved MCQs 2012

MIDTERM EXAMINATION

Spring 2010

CS401- Computer Architecture and Assembly Language Programming (Session - 2)

Q1. The physical address of the stack is obtained by (1 marks)

1. SS:SP combination
2. SS:SI combination
3. SS:SP combination
4. ES:BP combination
5. ES:SP combination

Q2. After the execution of instruction “RET ” (1 marks)

1. SP is incremented by 2
2. SP is incremented by 2
3. SP is decremented by 2
4. SP is incremented by 1
5. SP is decremented by 1

Q3. The second byte in the word designated for one screen location holds (1 marks)

1. Character color on the screen
2. The dimensions of the screen
3. Character position on the screen
4. Character color on the screen
5. ASCII code of the character

Q4. REP will always (1 marks)

1. Decrement CX by 1
2. Increment CX by 1
3. Increment CX by 2
4. Decrement CX by 1
5. Decrement CX by 2

Q5. The basic function of SCAS instruction is to (1 marks)

1. Compare
2. Compare
3. Scan
4. Sort
5. Move data

Q6. Index registers are used to store __________ (1 marks)

1. 
2. Address
3. Data
4. 
5. Intermediate result
6. 
7. Address
8. 
9. Both data and addresses