Practice Exam: Filesystems and Devices
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Question 1 of 50
1. Question
You are working as a system administrator and a colleague asks you to automatically mount an NFS share on boot for all users. You decide to configure this in the fstab file. Which of the following entries would correctly mount an NFS share located at 192.168.0.10:/data to the /mnt/data directory?
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Question 2 of 50
2. Question
You have been tasked with ensuring that a specific USB drive is always mounted to /media/usbdrive upon system boot, regardless of the order it’s detected. You know that the UUID of the drive is 1234-ABCD. Which of the following fstab entries would best accomplish this?
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Question 3 of 50
3. Question
You’re a system administrator at a company, and an intern is learning about swap space on Linux systems. She asks you which command to use to check the swap usage on the system. Which of the following would you recommend?
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Question 4 of 50
4. Question
A fellow system administrator is configuring a new server. They want to make sure that even if the physical drives are rearranged or replaced, the server will still correctly identify and mount the desired partitions. Which method would you suggest for this purpose?
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Question 5 of 50
5. Question
Your colleague is attempting to create a systemd mount unit for an NFS share. They want the share to be automatically mounted at boot. Which filename would be appropriate for a mount unit that mounts an NFS share located at server:/remote/share to the local directory /mnt/data?
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Question 6 of 50
6. Question
You’re setting up an NFS share in the /etc/fstab file to be mounted on /mnt/data from server:/share. Which of the following lines in /etc/fstab will correctly achieve this, with the filesystem being mounted at boot and allowing the user to manually unmount it?
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Question 7 of 50
7. Question
After updating the /etc/fstab file, you want to ensure that all the entries are correct without rebooting the system or unmounting and remounting the filesystems. Which command allows you to test the new entries without affecting the currently mounted filesystems?
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Question 8 of 50
8. Question
You’ve been tasked with determining the current state of all mounted filesystems on a running Linux server. Which statement accurately describes the primary role of the /etc/mtab file in this context?
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Question 9 of 50
9. Question
You noticed a discrepancy between the output of the mount command and the contents of /etc/mtab. Which statement is likely true about this scenario?
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Question 10 of 50
10. Question
You’ve been asked to confirm the current state of all mounted filesystems on a modern Linux server. Your colleague suggests checking the /etc/mtab file. However, you remember something about /proc/mounts. How do these two files relate?
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Question 11 of 50
11. Question
Peter, a junior administrator, is trying to unmount a filesystem using the umount command, but he keeps receiving an error that the target is busy. What’s the most common reason for this issue, and how can he resolve it?
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Question 12 of 50
12. Question
As a system administrator, you’re setting up a new disk on your server. Before adding its entry to /etc/fstab, you need to determine the UUID of the new disk partition. Which command would you use?
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Question 13 of 50
13. Question
After working with some files on a USB drive, you want to ensure that all data has been written to the drive before safely removing it. Which command should you execute to make sure all buffered data for the file system is flushed to the storage device?
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Question 14 of 50
14. Question
After setting up a new swap partition, Sarah wants to enable the swap space without rebooting her system. Which command should she use to activate the new swap partition /dev/sdb2?
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Question 15 of 50
15. Question
Emily, a system administrator, has been facing performance issues on her server. Upon investigation, she discovers that a malfunctioning application has been intensively using the swap space. She decides to temporarily deactivate the swap space /dev/sda2 without affecting other running applications. Which command should Emily use?
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Question 16 of 50
16. Question
Michael, a system administrator, suspects that there might be some inconsistencies on an ext4 filesystem mounted at /data. He wishes to check and fix any potential issues without mounting the filesystem. Which utility should Michael use for this purpose?
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Question 17 of 50
17. Question
Jessica, a system administrator, needs to create a new subvolume named ‘projects’ on her Btrfs filesystem mounted at /mnt/data. Which command should she use to achieve this?
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Question 18 of 50
18. Question
Alex has just made several critical changes to a system and wants to take a snapshot of his Btrfs filesystem mounted at /mnt/system before continuing. He intends to name this snapshot ‘pre-upgrade’. Which command will correctly accomplish this?
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Question 19 of 50
19. Question
Thomas is planning to deploy a storage server and is considering using ZFS for its advanced features. Which of the following statements about ZFS is accurate?
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Question 20 of 50
20. Question
Alex has been tasked to create a new ext4 filesystem on a newly attached disk /dev/sdb1. He wants to use a block size of 4096 bytes. Which command should he use to accomplish this?
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Question 21 of 50
21. Question
Chris is preparing a new disk, /dev/sdd1, to be used as a swap partition on a Linux server. Before activating the swap space, he needs to format the partition appropriately. Which command should he use?
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Question 22 of 50
22. Question
Hannah, a system administrator, is creating a swap file named swapfile.img in the /mnt/data/ directory. She’s using the dd command to create a 2GB file and then wants to prepare it as a swap space. Which command should she use next?
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Question 23 of 50
23. Question
Samantha suspects that there might be some inconsistencies on her /dev/sdb2 ext4 partition. Before mounting it, she decides to perform a filesystem check but does not want the check to be carried out if the filesystem was unmounted cleanly. Which command should she use?
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Question 24 of 50
24. Question
You are tasked with updating an ext4 filesystem to reduce the time between periodic filesystem checks. You are specifically asked to set the check interval to 30 days. Which of the following commands would you use to accomplish this?
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Question 25 of 50
25. Question
A system administrator suspects that there may be inconsistencies on an XFS filesystem mounted at /data. Before proceeding with any corrective measures, the administrator wants to gather information about the filesystem. Which command should the administrator use to retrieve detailed information about the XFS filesystem at /data?
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Question 26 of 50
26. Question
After a system crash, you want to check an XFS filesystem for consistency and, if necessary, repair any found issues. However, you want to ensure that the filesystem is not modified unless there is a consistency problem. Which command would be appropriate in this scenario?
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Question 27 of 50
27. Question
A system administrator wants to view the health of the hard drive /dev/sda on a Linux system and interpret the attributes and threshold values in a user-friendly format. Which command will achieve this?
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Question 28 of 50
28. Question
The system administrator received an alert regarding a potential hard drive failure. To monitor and log the SMART status of /dev/sdb in the background, ensuring it checks the status every 30 minutes, which of the following would be appropriate?
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Question 29 of 50
29. Question
A system administrator wants to use autofs to automatically mount a network share whenever a user accesses the /mnt/networkshare directory. Which file does the administrator primarily need to modify to define the mount point /mnt/networkshare?
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Question 30 of 50
30. Question
To make the settings in autofs take effect after modifying its configuration files, what should the system administrator do?
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Question 31 of 50
31. Question
Alice, a system administrator, is configuring automount units for systemd. She needs to create a unit that automatically mounts an NFS share when it’s accessed. What type of unit file should Alice create?
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Question 32 of 50
32. Question
John, a systems engineer, needs to create an ISO image from a directory named project_files. Which command can John use to produce the ISO image named output.iso without including any file from a sub-directory named backup located inside project_files?
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Question 33 of 50
33. Question
Samantha, a systems administrator, has been given a CD-ROM which was created on a Macintosh computer. She knows the CD uses the HFS (Hierarchical File System) used by older Macs. Which of the following tools is BEST suited for reading the HFS file system on a Linux machine?
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Question 34 of 50
34. Question
Brian wants to create an HFS disk image from a directory named mac_data on his Linux machine. Which command would allow him to accomplish this, resulting in an image named mac_image.hfs?
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Question 35 of 50
35. Question
Martin, a system administrator, wants to create an ISO image from a directory containing files with long filenames and mixed-case letters. He wishes the CD-ROM to be readable on both Linux and Windows systems without filename limitations. Which filesystem extension should Martin use?
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Question 36 of 50
36. Question
You have been given a CD-ROM that is supposed to be bootable, but it’s not booting on your system. Which ISO 9660 extension is primarily responsible for making CD-ROMs bootable?
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Question 37 of 50
37. Question
Oliver, a systems administrator, has just set up a new Linux server. For added security, he wants to encrypt the data partition on the server. Which tool can be used to create an encrypted block device, that once unlocked, acts like a regular block device?
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Question 38 of 50
38. Question
Carla is a security analyst and wants to check the type and version of the encrypted device she received. Which command will allow her to obtain this information from a LUKS encrypted device?
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Question 39 of 50
39. Question
Lisa, a system administrator, is configuring automount on a Linux server to automatically mount NFS shares. She needs to specify the primary configuration file for automount. Which file serves this purpose?
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Question 40 of 50
40. Question
James is troubleshooting an issue with an automounted directory not behaving as expected. He wants to view the default options for the automount daemon. Which file should he inspect to see the default mount points and options?
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Question 41 of 50
41. Question
Jackie is implementing automount on her company’s Linux servers. She has successfully configured the /etc/auto.master file and now wants to specify additional configurations for a directory named /misc. Which file should Jackie use for this purpose?
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Question 42 of 50
42. Question
Maria is setting up autofs for a specific project directory called /projects on a Linux server. She wants to ensure that the specific mounting details for this directory are isolated from the main configuration. What should be the name of the configuration file she creates?
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Question 43 of 50
43. Question
Lucas is preparing an ISO image from a directory named data_dir for a project presentation. He wants to create the ISO with Rock Ridge extensions to retain UNIX file attributes. Which command should Lucas use?
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Question 44 of 50
44. Question
Emily is aiming to create a bootable ISO image from a directory called boot_files. She knows that the boot image file is named boot.img inside the directory. Which mkisofs command should she execute to achieve this?
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Question 45 of 50
45. Question
Alex is tasked with encrypting an unpartitioned disk /dev/sdb using LUKS encryption. Which command should he use to initialize the LUKS partition on the specified disk?
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Question 46 of 50
46. Question
Maria has an encrypted LUKS partition on /dev/sdc1 and wants to securely erase all keyslots, making the data permanently inaccessible. Which cryptsetup command should she execute to achieve this?
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Question 47 of 50
47. Question
Lisa, a system administrator, needs to set up an autofs map for users’ home directories located on a remote NFS server nfs-server.company.com. The user home directories are located in /exports/users/. Which line should she include in the /etc/auto.home file to achieve this?
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Question 48 of 50
48. Question
Which of the following file systems is primarily used on Apple Macintosh computers and is commonly found on older CDs made for this platform?
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Question 49 of 50
49. Question
When examining an older CD intended for use on an Apple Macintosh computer, which file system would you most likely encounter?
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Question 50 of 50
50. Question
You are examining an old CD-ROM intended for both Windows and Linux systems. It uses a filesystem extension to store long filenames that Windows 95 and later versions can recognize. Which CD-ROM filesystem extension is this referring to?
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