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Welcome to the Breaking Protections MCQs Page

Dive deep into the fascinating world of Breaking Protections with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Breaking Protections, a crucial aspect of Reverse Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Breaking Protections, 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 Breaking Protections. 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 Breaking Protections. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Breaking Protections MCQs | Page 2 of 7

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Q11.
What is the initial task to be performed to locate the key-generation algorithm within the crackme?

a.

Look for the code that reads the contents of the two edit boxes into which you're typing the username and serial number

b.

Look for the dialog box creation APIs in the program's initialization code

c.

Look for references to GetDlgItemTextA or GetDlgItemTextW

d.

Open the Find References to Import window

Discuss
Answer: (a).Look for the code that reads the contents of the two edit boxes into which you're typing the username and serial number Explanation:The initial task to be performed to locate the key-generation algorithm within the crackme is to look for the code that reads the contents of the two edit boxes into which you're typing the username and serial number.
Q12.
What is the method used to create keygen programs?

a.

Reverse engineering copy protection products

b.

Purchasing keygen programs from developers

c.

Developing keygen programs from scratch

d.

None of the above

Discuss
Answer: (a).Reverse engineering copy protection products Explanation:The method used to create keygen programs is to reverse engineer copy protection products.
Q13.
What is the advantage of ripping key-generation algorithms from copy protection products?

a.

It requires a deep understanding of the algorithm

b.

It is a difficult and time-consuming process

c.

It is an easy and effective method for creating keygen programs

d.

It requires a large team of developers

Discuss
Answer: (c).It is an easy and effective method for creating keygen programs Explanation:The advantage of ripping key-generation algorithms from copy protection products is that it is an easy and effective method for creating keygen programs.
Q14.
What is the purpose of the Defender crackme?

a.

To teach basic protection concepts

b.

To demonstrate powerful protection techniques

c.

To show how to create a keygen program

d.

To introduce the concept of serial numbers

Discuss
Answer: (b).To demonstrate powerful protection techniques Explanation:Defender was specifically created to demonstrate powerful protection techniques that are similar to what you would find in real-world, commercial protection technologies.
Q15.
What operating systems can Defender run on?

a.

Windows 98 and Windows Me

b.

Windows XP, Windows Server 2003, Windows 2000, and Windows NT 4.0

c.

Only NT-based Windows systems

d.

All currently available Windows systems

Discuss
Answer: (b).Windows XP, Windows Server 2003, Windows 2000, and Windows NT 4.0 Explanation:Defender runs on all currently available NT-based systems, including Windows XP, Windows Server 2003, Windows 2000, and Windows NT 4.0, but it will not run on non-NT-based systems such as Windows 98 or Windows Me.
Q16.
Is it easy to crack Defender?

a.

Yes

b.

No

c.

May be Yes or No

d.

Can't say

Discuss
Answer: (b).No Explanation:If you’ve never confronted a serious protection technology before Defender, it might seem impossible to crack. It is not; all it takes is a lot of knowledge and a lot of patience.
Q17.
What is Defender?

a.

A crackme

b.

A protection technology

c.

A console-mode application

d.

A DOS program

Discuss
Answer: (c).A console-mode application Explanation:Defender is a console-mode application.
Q18.
What is the purpose of running Defender in a Command Prompt window?

a.

It allows the program to communicate with the user using a simple text window.

b.

It enables the program to run on non-NT-based systems.

c.

It simplifies the program by avoiding the Windows GUI APIs.

d.

It allows the user to enter bogus values.

Discuss
Answer: (a).It allows the program to communicate with the user using a simple text window. Explanation:Defender is a console-mode application that communicates with the user using a simple text window, and that it should generally be run from a Command Prompt window.
Q19.
What happens when you enter a bogus username and serial number into Defender?

a.

Defender reports that you have a bad serial number.

b.

Defender terminates with an error message.

c.

Defender accepts the bogus values and allows you to continue.

d.

Defender crashes.

Discuss
Answer: (a).Defender reports that you have a bad serial number. Explanation:When you enter bogus values into Defender, it reports that you have a bad serial number.
Q20.
Why is it important to know what the failure message looks like when cracking?

a.

So that you can identify where in the executable the message is located.

b.

So that you can better understand the protection technology being used.

c.

So that you can create a keygen program that produces the correct failure message.

d.

So that you can avoid triggering the protection mechanism by providing the correct input values.

Discuss
Answer: (a).So that you can identify where in the executable the message is located. Explanation:One good reason to always enter bogus values into the program when cracking is so that you at least know what the failure message looks like, and that you should be able to find this message somewhere in the executable.
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