- A
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && echo "/dev/vg1/mylv /mnt/data xfs defaults 0 0" >> /etc/fstab
Correct: Uses proper device path and appends fstab entry.
- B
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && blkid /dev/vg1/mylv >> /etc/fstab
Why wrong: Wrong: blkid output is not in fstab format; would not work.
- C
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && echo "/dev/vg1/mylv /mnt/data xfs defaults 0 0" > /etc/fstab
Why wrong: Wrong: Overwrites /etc/fstab with > rather than appending with >>.
- D
lvcreate -n mylv --size 10G vg1 && mkfs.xfs /dev/mylv && mount /dev/mylv /mnt/data && echo "/dev/mylv /mnt/data xfs defaults 0 0" >> /etc/fstab
Why wrong: Wrong: Uses /dev/mylv instead of /dev/vg1/mylv.
EX200 Deploy, configure, and maintain systems Practice Question
This EX200 practice question tests your understanding of deploy, configure, and maintain 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.
An administrator needs to create a 10GB logical volume named 'mylv' in an existing volume group 'vg1', format it with XFS, and mount it at /mnt/data. Which set of commands achieves this correctly?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && echo "/dev/vg1/mylv /mnt/data xfs defaults 0 0" >> /etc/fstab
Option A is correct because it uses the proper `lvcreate` syntax with `-n` for name and `-L` for size, creates the logical volume `/dev/vg1/mylv`, formats it with XFS, mounts it, and appends the correct fstab entry using `>>` to avoid overwriting existing entries. The device path `/dev/vg1/mylv` is the standard LVM device mapper path for a logical volume named 'mylv' in volume group 'vg1'.
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.
- ✓
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && echo "/dev/vg1/mylv /mnt/data xfs defaults 0 0" >> /etc/fstab
Why this is correct
Correct: Uses proper device path and appends fstab entry.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && blkid /dev/vg1/mylv >> /etc/fstab
Why it's wrong here
Wrong: blkid output is not in fstab format; would not work.
- ✗
lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && echo "/dev/vg1/mylv /mnt/data xfs defaults 0 0" > /etc/fstab
Why it's wrong here
Wrong: Overwrites /etc/fstab with > rather than appending with >>.
- ✗
lvcreate -n mylv --size 10G vg1 && mkfs.xfs /dev/mylv && mount /dev/mylv /mnt/data && echo "/dev/mylv /mnt/data xfs defaults 0 0" >> /etc/fstab
Why it's wrong here
Wrong: Uses /dev/mylv instead of /dev/vg1/mylv.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Red Hat often tests the distinction between `>` (overwrite) and `>>` (append) in fstab manipulation, and the correct LVM device path format (`/dev/vg1/mylv` vs. `/dev/mylv`), to catch candidates who confuse volume group names with logical volume paths or misuse shell redirection.
Trap categories for this question
Command / output trap
Wrong: blkid output is not in fstab format; would not work.
Detailed technical explanation
How to think about this question
LVM logical volumes are accessed via device mapper paths like `/dev/<vg>/<lv>` or `/dev/mapper/<vg>-<lv>`. The `-L` option specifies size in gigabytes (e.g., `10G`), while `--size` is an alias but less common in exam contexts. When adding entries to `/etc/fstab`, always use `>>` to append; a single `>` will truncate the file, potentially rendering the system unbootable. The `blkid` command outputs key-value pairs, not fstab-compatible lines, so it cannot be used directly.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
- →
Deploy, configure, and maintain systems — study guide chapter
Learn the concepts, then practise the questions
- →
Deploy, configure, and maintain systems practice questions
Targeted practice on this topic area only
- →
All EX200 questions
527 questions across all exam domains
- →
Red Hat Certified System Administrator EX200 study guide
Full concept coverage aligned to exam objectives
- →
EX200 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related EX200 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Operate running systems practice questions
Practise EX200 questions linked to Operate running systems.
Configure local storage practice questions
Practise EX200 questions linked to Configure local storage.
Create and configure file systems practice questions
Practise EX200 questions linked to Create and configure file systems.
Deploy, configure, and maintain systems practice questions
Practise EX200 questions linked to Deploy, configure, and maintain systems.
Manage users and groups practice questions
Practise EX200 questions linked to Manage users and groups.
Manage security practice questions
Practise EX200 questions linked to Manage security.
Manage containers practice questions
Practise EX200 questions linked to Manage containers.
Create simple shell scripts practice questions
Practise EX200 questions linked to Create simple shell scripts.
Essential Tools practice questions
Practise EX200 questions linked to Essential Tools.
EX200 fundamentals practice questions
Practise EX200 questions linked to EX200 fundamentals.
EX200 scenario practice questions
Practise EX200 questions linked to EX200 scenario.
EX200 troubleshooting practice questions
Practise EX200 questions linked to EX200 troubleshooting.
Practice this exam
Start a free EX200 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this EX200 question test?
Deploy, configure, and maintain systems — This question tests Deploy, configure, and maintain systems — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: lvcreate -n mylv -L 10G vg1 && mkfs.xfs /dev/vg1/mylv && mount /dev/vg1/mylv /mnt/data && echo "/dev/vg1/mylv /mnt/data xfs defaults 0 0" >> /etc/fstab — Option A is correct because it uses the proper `lvcreate` syntax with `-n` for name and `-L` for size, creates the logical volume `/dev/vg1/mylv`, formats it with XFS, mounts it, and appends the correct fstab entry using `>>` to avoid overwriting existing entries. The device path `/dev/vg1/mylv` is the standard LVM device mapper path for a logical volume named 'mylv' in volume group 'vg1'.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 30, 2026
This EX200 practice question is part of Courseiva's free Red Hat certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the EX200 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.