# OS-5 Quiz: OS Types and File Systems

Take this after studying `notes/OS-5-os-types-filesystems.md`.

Reply with answers like:
`1B 2A 3D 4C 5B 6A 7D`

## Questions

1. Which file system is the normal modern choice for Windows system drives?

A. ext4  
B. APFS  
C. NTFS  
D. XFS  

2. Which file system is broadly compatible but has a 4 GB maximum single-file size?

A. NTFS  
B. FAT32  
C. ReFS  
D. APFS  

3. Which file system is commonly used by Linux systems?

A. HFS+  
B. exFAT  
C. NTFS  
D. ext4  

4. Which operating system is most associated with Chromebooks and cloud/web-based workflows?

A. ChromeOS  
B. Windows Server  
C. iPadOS  
D. Android  

5. Which mobile operating system is Linux-based and used by many device manufacturers?

A. iOS  
B. macOS  
C. Android  
D. ChromeOS  

6. Which file system is Apple's modern file system for macOS, iOS, and iPadOS?

A. ReFS  
B. APFS  
C. FAT32  
D. XFS  

7. Which command on Linux shows mounted file systems and their file-system types?

A. `whoami`  
B. `ping 127.0.0.1`  
C. `gpupdate /force`  
D. `df -T`  

8. Which file system is commonly used for USB drives that need to work on both Windows and macOS?

A. NTFS  
B. ext4  
C. exFAT  
D. ReFS  

9. Which Windows file system is designed for resilience and data integrity in server and RAID environments?

A. FAT16  
B. ReFS  
C. HFS+  
D. APFS  

10. A technician is formatting a USB drive for use on Linux only. Which file system is the best choice?

A. NTFS  
B. FAT32  
C. exFAT  
D. ext4  

11. Which Linux command shows the kernel version and architecture of the running system?

A. `chmod`  
B. `uname -a`  
C. `df -T`  
D. `apt`  

12. ChromeOS is based on which kernel?

A. Windows NT  
B. Darwin  
C. Linux  
D. FreeBSD  

13. Which mobile OS uses APK files as its application package format?

A. iOS  
B. Android  
C. ChromeOS  
D. macOS  

14. What is the main advantage of NTFS over FAT32 for Windows system drives?

A. Lower storage overhead  
B. Compatibility with older DOS systems  
C. Support for file permissions, encryption, and files larger than 4 GB  
D. Faster write speeds on all hardware  

15. Which file system does iOS use internally?

A. NTFS  
B. ext4  
C. FAT32  
D. APFS  

## Answer Key For Instructor

1. C
2. B
3. D
4. A
5. C
6. B
7. D
8. C
9. B
10. D
11. B
12. C
13. B
14. C
15. D