{"id":78691,"date":"2026-06-01T02:29:48","date_gmt":"2026-06-01T02:29:48","guid":{"rendered":"http:\/\/bangla.sitestree.com\/?p=78691"},"modified":"2026-06-01T02:29:48","modified_gmt":"2026-06-01T02:29:48","slug":"q-a-linux-switch-users-boot-process-file-system","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=78691","title":{"rendered":"Q & A: Linux: Switch Users, Boot Process, File System"},"content":{"rendered":"\n

<\/p>\n\n\n\n

Quiz: Root Access, Boot Process, File Systems, Partitions, and Mounting<\/h1>\n\n\n\n

1. True\/False<\/h2>\n\n\n\n

The root<\/code> user is the superuser account and has the highest access rights on a Linux system.<\/p>\n\n\n\n

Answer:<\/strong> True<\/p>\n\n\n\n

\n\n\n\n

2. True\/False<\/h2>\n\n\n\n

It is recommended to stay logged in as root<\/code> for normal daily work because it is faster.<\/p>\n\n\n\n

Answer:<\/strong> False
Explanation:<\/strong> Staying logged in as root is risky because mistakes may affect the entire system.<\/p>\n\n\n\n

\n\n\n\n

3. Multiple Choice<\/h2>\n\n\n\n

Which command is preferred when you need to run one privileged command<\/strong>?<\/p>\n\n\n\n

A. su -<\/code>
B. sudo command<\/code>
C. exit<\/code>
D. whoami<\/code><\/p>\n\n\n\n

Answer:<\/strong> B. sudo command<\/code><\/p>\n\n\n\n

\n\n\n\n

4. Multiple Choice<\/h2>\n\n\n\n

What does the command below do?<\/p>\n\n\n\n

su -\n<\/code><\/pre>\n\n\n\n
A. Runs one command as root
B. Opens a login shell as root
C. Shows the current user
D. Lists mounted filesystems<\/p>\n\n\n\n
Answer:<\/strong> B. Opens a login shell as root<\/p>\n\n\n\n
\n\n\n\n
5. Multiple Choice<\/h2>\n\n\n\n
Which process is usually started by the kernel as the first userspace process?<\/p>\n\n\n\n
A. GRUB
B. BIOS
C. systemd<\/code> or init<\/code>
D. fdisk<\/code><\/p>\n\n\n\n
Answer:<\/strong> C. systemd<\/code> or init<\/code><\/p>\n\n\n\n
\n\n\n\n
6. Multiple Choice<\/h2>\n\n\n\n
Which systemd target usually represents a non-graphical multi-user system?<\/p>\n\n\n\n
A. poweroff.target<\/code>
B. rescue.target<\/code>
C. multi-user.target<\/code>
D. graphical.target<\/code><\/p>\n\n\n\n
Answer:<\/strong> C. multi-user.target<\/code><\/p>\n\n\n\n
\n\n\n\n
7. Multi-Select<\/h2>\n\n\n\n
Which of the following are risks of using the root account directly?<\/p>\n\n\n\n
Select all that apply.<\/p>\n\n\n\n
A. Accidental system-wide file changes
B. Running ordinary tasks with unnecessary privileges
C. Forgetting that you are logged in as root
D. More accountability than sudo<\/code>
E. Background processes may run with root privilege<\/p>\n\n\n\n
Answers:<\/strong> A, B, C, E<\/p>\n\n\n\n
\n\n\n\n
8. Multi-Select<\/h2>\n\n\n\n
Which commands are commonly part of the basic partition, format, mount, and verify workflow?<\/p>\n\n\n\n
Select all that apply.<\/p>\n\n\n\n
A. lsblk<\/code>
B. fdisk<\/code>
C. mkfs<\/code>
D. mount<\/code>
E. df -h<\/code>
F. passwd<\/code><\/p>\n\n\n\n
Answers:<\/strong> A, B, C, D, E<\/p>\n\n\n\n
\n\n\n\n
9. Multi-Select<\/h2>\n\n\n\n
Which statements about filesystems are correct?<\/p>\n\n\n\n
Select all that apply.<\/p>\n\n\n\n
A. A filesystem organizes data and metadata on storage
B. Journaling can reduce recovery time after an unclean shutdown
C. ext4<\/code> is commonly used on many Linux distributions
D. FAT is a modern Linux-native journaling filesystem
E. NTFS is associated with Microsoft Windows<\/p>\n\n\n\n
Answers:<\/strong> A, B, C, E<\/p>\n\n\n\n
\n\n\n\n
10. Fill in the Blank with Choices<\/h2>\n\n\n\n
A filesystem defines how __________ and metadata are organized and accessed on a storage device.<\/p>\n\n\n\n
A. users
B. data
C. passwords
D. targets<\/p>\n\n\n\n
Answer:<\/strong> B. data<\/p>\n\n\n\n
\n\n\n\n
11. Fill in the Blank with Choices<\/h2>\n\n\n\n
The Linux filesystem table is stored in the file __________.<\/p>\n\n\n\n
A. \/etc\/passwd<\/code>
B. \/etc\/fstab<\/code>
C. \/boot\/grub<\/code>
D. \/var\/log<\/code><\/p>\n\n\n\n
Answer:<\/strong> B. \/etc\/fstab<\/code><\/p>\n\n\n\n
\n\n\n\n
12. Fill in the Blank with Choices<\/h2>\n\n\n\n
On modern systems, __________ is normally preferred over MBR for large disks unless compatibility requires MBR.<\/p>\n\n\n\n
A. FAT
B. GPT
C. ext2
D. BIOS<\/p>\n\n\n\n
Answer:<\/strong> B. GPT<\/p>\n\n\n\n
\n\n\n\n
13. Matching<\/h2>\n\n\n\n
Match each FHS directory with its purpose.<\/p>\n\n\n\n
Directory<\/th>Purpose<\/th><\/tr><\/thead>
1. \/etc<\/code><\/td>A. User home directories<\/td><\/tr>
2. \/var<\/code><\/td>B. Device files<\/td><\/tr>
3. \/home<\/code><\/td>C. System-wide configuration files<\/td><\/tr>
4. \/dev<\/code><\/td>D. Logs and changing data<\/td><\/tr>
5. \/boot<\/code><\/td>E. Boot loader files and kernels<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Answer:<\/strong><\/p>\n\n\n\n
Directory<\/th>Correct Purpose<\/th><\/tr><\/thead>
\/etc<\/code><\/td>C<\/td><\/tr>
\/var<\/code><\/td>D<\/td><\/tr>
\/home<\/code><\/td>A<\/td><\/tr>
\/dev<\/code><\/td>B<\/td><\/tr>
\/boot<\/code><\/td>E<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
14. Matching<\/h2>\n\n\n\n
Match each command with its purpose.<\/p>\n\n\n\n
Command<\/th>Purpose<\/th><\/tr><\/thead>
1. lsblk<\/code><\/td>A. Format a partition with a filesystem<\/td><\/tr>
2. fdisk<\/code><\/td>B. Show block devices<\/td><\/tr>
3. mkfs<\/code><\/td>C. Modify partition tables<\/td><\/tr>
4. mount<\/code><\/td>D. Attach a filesystem to the Linux directory tree<\/td><\/tr>
5. umount<\/code><\/td>E. Detach a mounted filesystem<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Answer:<\/strong><\/p>\n\n\n\n
Command<\/th>Correct Purpose<\/th><\/tr><\/thead>
lsblk<\/code><\/td>B<\/td><\/tr>
fdisk<\/code><\/td>C<\/td><\/tr>
mkfs<\/code><\/td>A<\/td><\/tr>
mount<\/code><\/td>D<\/td><\/tr>
umount<\/code><\/td>E<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
15. Ordering<\/h2>\n\n\n\n
Put the boot stages in the correct order.<\/p>\n\n\n\n
A. Kernel starts init<\/code>\/systemd<\/code>
B. BIOS\/UEFI starts
C. GRUB loads the selected kernel
D. System reaches target\/services
E. MBR or boot loader code begins the boot manager stage<\/p>\n\n\n\n
Correct Order:<\/strong><\/p>\n\n\n\n
    \n
  1. B<\/li>\n\n\n\n
  2. E<\/li>\n\n\n\n
  3. C<\/li>\n\n\n\n
  4. A<\/li>\n\n\n\n
  5. D<\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n
    16. Ordering<\/h2>\n\n\n\n
    Put the storage setup steps in the correct order.<\/p>\n\n\n\n
    A. Format the partition with mkfs<\/code>
    B. Identify the disk with lsblk<\/code>
    C. Mount the filesystem
    D. Create a partition using fdisk<\/code>
    E. Verify using df -h<\/code><\/p>\n\n\n\n
    Correct Order:<\/strong><\/p>\n\n\n\n
      \n
    1. B<\/li>\n\n\n\n
    2. D<\/li>\n\n\n\n
    3. A<\/li>\n\n\n\n
    4. C<\/li>\n\n\n\n
    5. E<\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n
      17. Short Answer<\/h2>\n\n\n\n
      Explain the difference between sudo<\/code> and su -<\/code>.<\/p>\n\n\n\n
      Sample Answer:<\/strong>
      sudo<\/code> runs a single command with elevated privileges and logs the action. su -<\/code> opens a new login shell as another user, usually root if no username is provided. sudo<\/code> is safer for one administrative task, while su -<\/code> is used when a full shell as another user is needed.<\/p>\n\n\n\n
      \n\n\n\n
      18. Hands-on Short Answer<\/h2>\n\n\n\n
      Write commands to format \/dev\/sdb1<\/code> as ext4<\/code>, create \/mnt\/test<\/code>, mount the partition, and verify it.<\/p>\n\n\n\n
      Sample Answer:<\/strong><\/p>\n\n\n\n
      sudo mkfs -t ext4 \/dev\/sdb1\nsudo mkdir -p \/mnt\/test\nsudo mount -t ext4 \/dev\/sdb1 \/mnt\/test\ndf -h\n<\/code><\/pre>\n\n\n\n
      \n\n\n\n
      19. Analytical Short Answer<\/h2>\n\n\n\n
      Why is \/dev\/sdb<\/code> commonly used with fdisk<\/code>, but \/dev\/sdb1<\/code> is commonly used with mkfs<\/code>?<\/p>\n\n\n\n
      Sample Answer:<\/strong>
      \/dev\/sdb<\/code> represents the whole disk, so fdisk<\/code> uses it to create or modify the disk\u2019s partition table. \/dev\/sdb1<\/code> represents a specific partition, so mkfs<\/code> formats that partition with a filesystem.<\/p>\n\n\n\n
      \n\n\n\n
      20. Higher-Order Short Answer<\/h2>\n\n\n\n
      A server should automatically mount a new ext4 partition after every reboot. Which file should be configured, and what information does it need?<\/p>\n\n\n\n
      Sample Answer:<\/strong>
      The file \/etc\/fstab<\/code> should be configured. It needs the filesystem or UUID, mount point, filesystem type, mount options, dump value, and filesystem check pass value. Example pattern:<\/p>\n\n\n\n
      UUID=... \/mnt\/data ext4 defaults 0 2\n<\/code><\/pre>\n\n\n\n
      This allows the system to mount the filesystem automatically during boot.<\/p>\n\n\n\n
      <\/p>\n\n\n\n
      REF: AI Tools\/ChatGPT<\/p>\n","protected":false},"excerpt":{"rendered":"
      Quiz: Root Access, Boot Process, File Systems, Partitions, and Mounting 1. True\/False The root user is the superuser account and has the highest access rights on a Linux system. Answer: True 2. True\/False It is recommended to stay logged in as root for normal daily work because it is faster. Answer: FalseExplanation: Staying logged in … <\/p>\n
      Continue reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1976],"tags":[],"class_list":["post-78691","post","type-post","status-publish","format-standard","hentry","category-anything-linux","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":78678,"url":"http:\/\/bangla.sitestree.com\/?p=78678","url_meta":{"origin":78691,"position":0},"title":"Linux: ACL vs Selinux","author":"Sayed","date":"May 30, 2026","format":false,"excerpt":"ACL vs SELinux ACL and SELinux both control access, but they work at different levels. 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