EX200 Create and configure file systems Practice Question
This EX200 practice question tests your understanding of create and configure file systems. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
$ lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
├─sda1 xfs abcdef12-3456-7890-abcd-ef1234567890 /boot
├─sda2 swap 12345678-... [SWAP]
└─sda3 LVM2_member ... /
sdb
└─sdb1
The administrator wants to mount a new filesystem on /dev/sdb1 with the label 'backup' and mount it at /mnt/backup. Which commands achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
mkfs.xfs -L backup /dev/sdb1 && mount /dev/sdb1 /mnt/backup
Option C is correct because it first creates an XFS filesystem with the label 'backup' on /dev/sdb1 using mkfs.xfs -L backup, then mounts the device directly to /mnt/backup with mount /dev/sdb1 /mnt/backup. This sequence properly formats the partition and mounts it without requiring additional steps or incorrect commands.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
Incorrect: This uses ext4 and adds to fstab but does not mount immediately.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse the need to create a partition first (Option A) or use ext4 (Option D), or they may think that setting a label after mkfs and mounting by label (Option B) is valid, but the correct sequence is to create the filesystem with the label and then mount by device path.
Detailed technical explanation
How to think about this question
The mkfs.xfs command with the -L option sets the filesystem label during creation, which is stored in the XFS superblock. The mount command can reference a device by path or label; mounting by device path (/dev/sdb1) is straightforward and does not require the label to be set first. In real-world scenarios, using labels in /etc/fstab (e.g., LABEL=backup) provides flexibility if device names change, but the question only asks to mount it, not to make the mount persistent.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the EX200 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Create and configure file systems — This question tests Create and configure file systems — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: mkfs.xfs -L backup /dev/sdb1 && mount /dev/sdb1 /mnt/backup — Option C is correct because it first creates an XFS filesystem with the label 'backup' on /dev/sdb1 using mkfs.xfs -L backup, then mounts the device directly to /mnt/backup with mount /dev/sdb1 /mnt/backup. This sequence properly formats the partition and mounts it without requiring additional steps or incorrect commands.
What should I do if I get this EX200 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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