Welcome to the Windows Fundamentals MCQs Page

Dive deep into the fascinating world of Windows Fundamentals with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Windows Fundamentals, a crucial aspect of Reverse Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Windows Fundamentals, 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.

Check out the MCQs below to embark on an enriching journey through Windows Fundamentals. 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 Windows Fundamentals. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Windows Fundamentals MCQs | Page 4 of 26

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Q31.

What is the benefit of paging for applications?

They can use more memory than is physically available

They can access memory faster than physical memory

They can allocate memory more efficiently

They can avoid page faults

Discuss

Answer: (a).They can use more memory than is physically available Explanation:Applications can actually use more memory than is physically available, because the system can use the hard drive for secondary storage whenever there is not enough physical memory.

Q32.

How does the operating system know when to access the paging file?

When the processor generates a page fault

When the system is running out of physical memory

When an application requests more memory

When the hard drive is running out of space

Discuss

Answer: (a).When the processor generates a page fault Explanation:When the flushed pages are accessed, the processor will generate page fault (because their page-table entries are invalid), and the system will know that they have been paged out.

Q33.

What can happen if an application actively uses more memory than is physically available?

The system will allocate more physical memory

The system will automatically flush unused memory to the hard drive

The system will move data back and forth between physical memory and the hard drive, causing slow performance

The system will terminate the application

Discuss

Answer: (c).The system will move data back and forth between physical memory and the hard drive, causing slow performance Explanation:In such cases the system would have to move data back and forth between physical memory and the hard drive. Because hard drives are generally about 1,000 times slower than physical memory, such situations can cause systems to run incredibly slowly.

Q34.

What is a page fault?

It is generated when a memory address has a valid page-table entry.

It is generated when a memory address doesn't have a valid page-table entry.

It is generated when a program is being accessed by another program.

It is generated when a file is being accessed by a program.

Discuss

Answer: (b).It is generated when a memory address doesn't have a valid page-table entry. Explanation:A page fault is generated whenever a memory address is accessed that doesn’t have a valid page-table entry.

Q35.

Why do page faults have a bad reputation?

They are usually accompanied by a message informing us of an unhandled page fault.

They are triggered thousands of times each second in a healthy system.

They are a sign of a healthy system.

They don't have any impact on system performance.

Discuss

Answer: (a).They are usually accompanied by a message informing us of an unhandled page fault. Explanation:Page faults have a bad reputation because any program or system crash is usually accompanied by a message informing us of an unhandled page fault.

Q36.

What is an example of a legitimate page fault?

When a program is being accessed by another program.

When a file is being accessed by a program.

When a page has been paged out to the paging file and is being accessed by a program.

When a page has been paged out to the paging file and is not being accessed by any program.

Discuss

Answer: (c).When a page has been paged out to the paging file and is being accessed by a program. Explanation:A good example of a legitimate page fault is when a page has been paged out to the paging file and is being accessed by a program.

Q37.

What is a working set?

A data structure that lists physical pages in use in a process's address space

A file used for backing up memory areas when they are not in use

A system that deals with page faults as a part of its normal operations

A measurement on when a page was last accessed

Discuss

Answer: (a).A data structure that lists physical pages in use in a process's address space Explanation:A working set is a per-process data structure that lists the current physical pages that are in use in the process’s address space. It helps the system determine each process’s active use of physical memory and which memory pages have not been accessed in a while, so that those pages can be paged out to disk and removed from the process’s working set.

Q38.

What is the purpose of a working set?

To determine each process's active use of physical memory

To flush memory regions to the hard drive when they are not in use

To generate a page fault when a memory address is accessed without a valid page-table entry

To use the hard drive for secondary storage whenever there is not enough physical memory

Discuss

Answer: (a).To determine each process's active use of physical memory Explanation:The purpose of a working set is to determine each process's active use of physical memory

Q39.

How is memory usage in a virtual memory system measured?

By counting the total size of the working set

By measuring when a page was last accessed

By invalidating page-table entries

By using the hard drive for secondary storage

Discuss

Answer: (a).By counting the total size of the working set Explanation:The memory usage in a virtual memory system is measured by tracking each process's working set, which is a data structure that lists the current physical pages that are in use in the process's address space. The total size of the working set is a measurement of the memory usage of the process at any given moment.

Q40.

What is the purpose of the distinction between kernel memory and user memory?

To prevent applications from accessing the operating system's internal data structures

To give applications access to critical operating system data structures

To provide more memory to the operating system

To make it easier for programmers to write code

Discuss

Answer: (a).To prevent applications from accessing the operating system's internal data structures Explanation:The purpose of the distinction between kernel memory and user memory is to prevent applications from accessing the operating system's internal data structures.

Page 4 of 26

Low Level Software 🔒

Reversing Tools 🔒

Auditing Program Binaries 🔒

Reversing Malware 🔒

Antireversing Techniques 🔒

Breaking Protections 🔒

Reversing .NET 🔒

Deciphering Code Structures 🔒

Deciphering Program Data 🔒

Welcome to the Windows Fundamentals MCQs Page

Windows Fundamentals MCQs | Page 4 of 26

Explore more Topics under Reverse Engineering

Introduction to Reverse Engineering

Beyond the Documentation

Deciphering File Formats

Piracy and Copy Protection

Decompilation

Understanding Compiled Arithmetic

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