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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 8 of 30

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Q71.
How is C code executed?

a.

Interpreted

b.

Compiled

c.

Transpiled

d.

Debugged

Discuss
Answer: (b).Compiled Explanation:C is a compiled language, meaning that source code is run through a compiler to generate machine code.
Q72.
Why is C often used in the development of operating systems?

a.

Because it is easy to reverse

b.

Because it is a high-level language

c.

Because it is a compiled language

d.

Because it was specifically developed for the purpose of writing the Unix operating system

Discuss
Answer: (d).Because it was specifically developed for the purpose of writing the Unix operating system Explanation:The C language was specifically developed for the purpose of writing the Unix operating system, and that modern versions of Unix are still written in C.
Q73.
What is one factor contributing to the commercial success of C?

a.

Its ease of reversibility

b.

Its high runtime performance

c.

Its support for cross-platform execution

d.

Its high-level features

Discuss
Answer: (b).Its high runtime performance Explanation:The high performance of C code, due to its close proximity to machine code, has greatly affected its commercial success.
Q74.
Why is C code relatively easy to reverse?

a.

Because it is similar to the machine code

b.

Because it is a high-level language

c.

Because it is interpreted

d.

Because it uses a lot of added overhead

Discuss
Answer: (a).Because it is similar to the machine code Explanation:C code is relatively easy to reverse because it is fairly similar to the machine code.
Q75.
What is the difference between C and C++?

a.

C++ is a more flexible and sophisticated language that supports object-oriented programming.

b.

C++ is a compiled language, whereas C is an interpreted language.

c.

C++ does not impose any new limits on programmers, but C does.

d.

There is no difference between C and C++.

Discuss
Answer: (a).C++ is a more flexible and sophisticated language that supports object-oriented programming. Explanation:C++ is an extension of C and shares C's basic syntax, but it introduces support for object-oriented programming, making it more flexible and sophisticated.
Q76.
What is a class in C++?

a.

A data structure that can have code members.

b.

A function that manages the data stored in a data structure.

c.

A hierarchy of functionally related classes.

d.

A set of code constructs.

Discuss
Answer: (a).A data structure that can have code members. Explanation:A class in C++ is essentially a data structure that can have code members, which usually manage the data stored within the class.
Q77.
What is inheritance in C++?

a.

The ability to define a hierarchy of classes that enhance each other’s functionality.

b.

The ability to override members declared in the base class.

c.

The ability to create a set of related code constructs.

d.

The ability to compile code for multiple platforms.

Discuss
Answer: (a).The ability to define a hierarchy of classes that enhance each other’s functionality. Explanation:Inheritance in C++ is the ability to define a hierarchy of classes that enhance each other’s functionality. This allows for the creation of base classes that unify a group of functionally related classes, with multiple derived classes that extend the base class’s functionality.
Q78.
What is polymorphism in C++?

a.

The ability to override members declared in the base class.

b.

The ability to define a hierarchy of classes that enhance each other’s functionality.

c.

The ability to use an object without knowing its exact data type, but only its base class.

d.

The ability to manage the data stored within a class.

Discuss
Answer: (c).The ability to use an object without knowing its exact data type, but only its base class. Explanation:The real beauty of C++ (and other object-oriented languages) is polymorphism, which allows for derived classes to override members declared in the base class. This means that the program can use an object without knowing its exact data type—it must only be familiar with the base class.
Q79.
How is reversing code written in C++ different from reversing code written in C?

a.

There is no difference.

b.

Emphasis must be placed on deciphering the program’s class hierarchy in C++ code.

c.

Emphasis must be placed on properly identifying function calls in C code.

d.

C++ code is easier to reverse than C code.

Discuss
Answer: (b).Emphasis must be placed on deciphering the program’s class hierarchy in C++ code. Explanation:Reversing code written in C++ is very similar to working with C code, except that emphasis must be placed on deciphering the program’s class hierarchy and on properly identifying class method calls, constructor calls, etc.
Q80.
What is Java?

a.

A low-level language

b.

An object-oriented, high-level language

c.

A compiled language

d.

An interpreted language

Discuss
Answer: (b).An object-oriented, high-level language Explanation:Java is an object-oriented, high-level language.
Page 8 of 30

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