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Welcome to the Low Level Software MCQs Page

Dive deep into the fascinating world of Low Level Software with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Low Level Software, a crucial aspect of Reverse Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Low Level Software, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Reverse Engineering.

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Check out the MCQs below to embark on an enriching journey through Low Level Software. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Reverse Engineering.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Low Level Software. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Low Level Software MCQs | Page 17 of 30

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Q161.
What does an operand represent in IA-32 instructions?

a.

A specific task to be performed by the instruction

b.

A parameter passed to a function

c.

Data that is handled by the specific instruction

d.

A hard-coded constant in the original program

Discuss
Answer: (c).Data that is handled by the specific instruction Explanation:Operands represent data that is handled by the specific instruction.
Q162.
What is a memory address in IA-32 instructions?

a.

The name of a general-purpose register

b.

A constant value embedded right in the code

c.

An operand that resides in RAM

d.

The address of data that is stored in RAM

Discuss
Answer: (d).The address of data that is stored in RAM Explanation:A memory address in IA-32 instructions is the address of data that is stored in RAM.
Q163.
What does the general instruction format look like in IA-32 instructions?

a.

Opcode, source operand, destination operand

b.

Opcode, immediate, register name

c.

Opcode, memory address, immediate

d.

Opcode, destination operand, source operand

Discuss
Answer: (d).Opcode, destination operand, source operand Explanation:The general instruction format in IA-32 instructions is Opcode, destination operand, source operand.
Q164.
What does the EAX operand represent?

a.

A hard-coded memory address

b.

An immediate number embedded in the code

c.

A general-purpose register to be read from or written to

d.

A global variable access

Discuss
Answer: (c).A general-purpose register to be read from or written to Explanation:The EAX operand represents "the name of a general-purpose register to be read from or written to".
Q165.
What does the immediate operand represent?

a.

A hard-coded memory address

b.

An immediate number embedded in the code

c.

A general-purpose register to be read from or written to

d.

A global variable access

Discuss
Answer: (b).An immediate number embedded in the code Explanation:The immediate operand represents "a constant value embedded right in the code".
Q166.
What is the most popular IA-32 instruction?

a.

ADD

b.

SUB

c.

MUL

d.

MOV

Discuss
Answer: (d).MOV Explanation:The most popular IA-32 instruction is MOV.
Q167.
How many operands does the MOV instruction take?

a.

One operand

b.

Two operands

c.

Three operands

d.

Four operands

Discuss
Answer: (b).Two operands Explanation:The MOV instruction takes two operands: a destination operand and a source operand.
Q168.
Can both operands in the MOV instruction contain a memory address?

a.

Yes

b.

No

c.

May be Yes or No

d.

Can't say

Discuss
Answer: (b).No Explanation:Only one of the operands in the MOV instruction can contain a memory address, and never both.
Q169.
How many basic integer arithmetic instructions are there in the IA-32 instruction set?

a.

2

b.

4

c.

6

d.

8

Discuss
Answer: (c).6 Explanation:There are six basic integer arithmetic instructions in the IA-32 instruction set: ADD, SUB, MUL, DIV, IMUL, and IDIV.
Q170.
What is the format of the IA-32 arithmetic instructions?

a.

Instruction Name (opcode) Destination Operand, Source Operand

b.

Instruction Name (opcode) Operand 1, Operand 2

c.

Instruction Name (opcode) Register Operand, Immediate Operand

d.

Instruction Name (opcode) Memory Operand, Register Operand

Discuss
Answer: (b).Instruction Name (opcode) Operand 1, Operand 2 Explanation:The IA-32 arithmetic instructions follow a common format with two operands: Operand 1 and Operand 2, along with the instruction name (opcode).
Page 17 of 30

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