This set of Cyber Security Multiple Choice Questions & Answers (MCQs) focuses on “Attack Vectors – Reverse Engineering – 1”.
1. ______________ can be defined as the duplication of another creator’s or developer’s product trailing a thorough examination of its production or development.
a) Reverse hacking
b) Cracking
c) Social engineering
d) Reverse engineering
View Answer
Explanation: Reverse engineering can be defined as the duplication of another creator’s or developer’s product trailing a thorough examination of its production or development. This process involves how the system or the application works and what needs to be done in order to crack it.
2. _____________ can be made functional to diverse aspects of software development & hardware improvement activities.
a) Reverse hacking
b) Cracking
c) Reverse engineering
d) Social engineering
View Answer
Explanation: Reverse engineering can be made functional to diverse aspects of software development & hardware improvement activities. This practice absorbs how the system or the application works & what concepts have to implement in order to crack or duplicate it.
3. RE is often defined as the crafting technique of ____________ who uses his skills to remove copy protection or trial versions from software or media.
a) crackers
b) risk assessment team
c) auditors
d) surveillance monitoring team
View Answer
Explanation: Reverse Engineering is often defined as the crafting technique of crackers who uses his skills to remove copy protection or trial versions from software or media. Reverse engineering can be made functional to diverse aspects of software development & hardware improvement activities.
4. Which of the following activity is a good aspect of reverse engineering in ethical hacking?
a) Cracking the trial version of the product to make it full-version
b) Removing the product key insertion step
c) Jumping the code for premium facilities
d) Determining the vulnerabilities in the product.
View Answer
Explanation: Reverse engineering (RE) can be defined as the duplication of another creator’s or developer’s product trailing a thorough examination of its production or development. Determining the vulnerabilities in the product is one good aspect of RE.
5. Which of the following activity is a good aspect of reverse engineering in ethical hacking?
a) Cracking the trial version of the product to make it full-version
b) Removing the product key insertion step
c) Jumping the code for premium facilities
d) Determine whether the app contains any undocumented functionality
View Answer
Explanation: The duplication of another creation or developed product trailing thorough examination of its production or development is termed as Reverse Engineering. Determine whether the app contains any undocumented functionality is one good aspect of RE.
6. Which of the following is not a proper use of RE for ethical hackers?
a) Check for poorly designed protocols
b) Check for error conditions
c) Cracking for making paid apps free for use
d) Testing for boundary conditions
View Answer
Explanation: Cracking for making paid apps free for use is not an acceptable reverse engineering work for ethical hackers. This process involves how the system or the application works internally and how to change the logic to crack the system or app.
7. ________________ is the opposite of assembler.
a) Reassembler
b) Disassembler
c) Compiler
d) Interpreter
View Answer
Explanation: An assembler converts code written in assembly language to binary/machine code, disassembler does the reverse for cracking purpose. The disassembler is the opposite of assembler.
8. ______________ comes under tools for reverse engineering (RE).
a) Reassembler
b) Compiler
c) Disassembler
d) Interpreter
View Answer
Explanation: Disassembler is the opposite of assembler. As assemblers are used to convert code written in assembly language to binary/machine code, disassembler does the reverse for cracking purpose & it comes under reverse engineering tool.
9. De-compilation is not done for _______________
a) Recovery of lost source code
b) Migration of assembly language
c) Determining the existence of malicious code in any app
d) Targeting users with stealing code
View Answer
Explanation: De-compilation is a technique of reverse engineering which is used for recovery of lost source code, migration of assembly language or determining the existence of malicious code in any app.
10. Which of the following is not a disassembler tool?
a) IDA Pro
b) PE Explorer
c) Turbo C
d) W32DASM
View Answer
Explanation: As assembler converts code written in assembly language to binary/machine code, disassembler does the reverse for cracking purpose & it comes under reverse engineering tool. Turbo C is not a disassembler tool.
11. There are ______ types of reverse engineering methodologies.
a) 6
b) 2
c) 5
d) 3
View Answer
Explanation: There are two types of reverse engineering methodologies. One is where the source-code is obtainable, but the high-level aspects of the program are not. For the other type, the software’s source code is not obtainable.
12. Which of the following is not an actual Reverse Engineering tool?
a) Debugger
b) Disassembler
c) Text Editor
d) Hex Editor
View Answer
Explanation: Reverse engineering is the art of finding out & duplication of another creator’s or developer’s product by examination of any product or development methodologies. A text editor is not a Reverse Engineering tool.
13. Hex editors permit programmers to inspect & alter binaries based on some software requirements.
a) True
b) False
View Answer
Explanation: Hex editors are reverse engineering tools that permit programmers to inspect & alter binaries based on some software requirements. They help in manipulating fundamental binary data in an app.
14. PE & Resource Viewer permits programmers to inspect & alter resources which are entrenched in the EXE file of any software.
a) PE & Resource Viewer
b) Debugger
c) Disassembler
d) Hex Editor
View Answer
Explanation: There are various categories of reverse engineering tools. PE & Resource Viewer permits programmers to inspect & alter resources which are entrenched in the EXE file of any software.
15. IDAPro is used as a _________________ in manual binary code analysis and also used a debugger.
a) PE & Resource Viewer
b) Debugger
c) Disassembler
d) Hex Editor
View Answer
Explanation: Disassembler in Reverse Engineering used to slice up binary codes into assembly codes. IDAPro is used as a disassembler in manual binary code analysis and also used as a debugger.
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