CS401 midterm mcqs preparation 2022

Created on May 17, 2022 By

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CS401 midterm mcqs preparation 2022

1 / 10

When two 16bit numbers are added the answer can be 17 bits long, this extra bit that won’t fit in the target

carry flag

Parity Flag

Auxiliary Carry

Zero Flag

2 / 10

If D is “35” is shift to left 2 bits the new value

140

3 / 10

if ax contains decimal -2 and BX contains decimal 2 then after the execution of

instructions: CMP AX, BX ,JA label

Jump will be taken

Zero flag will set

ZF will contain value -4

Jump will not be taken

4 / 10

Each screen location corresponds to a word, the lower byte of this word contains ____

The character code

The attribute byte

The parameters

The dimensions

5 / 10

When an item is pushed on the decrementing stack, the top of the stack is

First decremented and then element copied on to the stack

First incremented and then element copied on to the stack

Decremented after the element copied on to the stack

Incremented after the element copied on to the stack

6 / 10

One screen location corresponds to a

Byte

Word

Double byte

Double word

7 / 10

The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the

character will be

Black

White

Red

Blue

8 / 10

The iAPX888 architecture consists of _______ register.

9 / 10

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

10 / 10

The first instruction of “COM” file must be at offset:

0x0010

0x0100

0x1000

0x0000

Your score is

The average score is 52%

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