Quick Answer
The correct command is `lvcreate -L 2G -n lvdata vgdata`, which creates a 2GB logical volume named 'lvdata' within the volume group 'vgdata'. This syntax is correct because the `-L` flag specifies the exact size in gigabytes, `-n` assigns the logical volume name, and the volume group name is provided as the final positional argument, following the standard LVM2 command structure. On the Red Hat Certified System Administrator EX200 exam, this question tests your ability to recall the precise `lvcreate` command syntax for logical volume creation, a fundamental skill for managing storage with LVM. A common trap is confusing the `-L` (size) and `-l` (extent count) flags, or forgetting that the volume group must be named last, not the logical volume. To remember the order, think of it as "Size, Name, Group" — the mnemonic "S-N-G" helps you keep the sequence straight under exam pressure.
This EX200 practice question tests your understanding of configure local storage. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which command creates a 2GB logical volume named 'lvdata' in the volume group 'vgdata'?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
lvcreate -L 2G -n lvdata vgdata
Correct syntax.
lvcreate -n vgdata -L 2G lvdata
Why wrong: Arguments swapped.
lvcreate -n lvdata -s 2G vgdata
Why wrong: -s is for snapshot.
lvcreate -l 2G -n lvdata vgdata
Why wrong: -l is for extents, not size.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
lvcreate -L 2G -n lvdata vgdata
Option A is correct because the `lvcreate` command with `-L 2G` specifies the size in gigabytes, `-n lvdata` sets the logical volume name, and `vgdata` is the volume group in which the logical volume is created. This syntax follows the standard LVM2 command structure for creating a logical volume of a specified size within an existing volume group.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
lvcreate -L 2G -n lvdata vgdata
Why this is correct
Correct syntax.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
lvcreate -n vgdata -L 2G lvdata
Why it's wrong here
Arguments swapped.
lvcreate -n lvdata -s 2G vgdata
Why it's wrong here
-s is for snapshot.
lvcreate -l 2G -n lvdata vgdata
Why it's wrong here
-l is for extents, not size.
Common exam traps
The trap here is confusing the `-L` (size in units) and `-l` (number of extents) flags, leading candidates to incorrectly use `-l` with a size suffix, which is syntactically invalid in LVM2.
Detailed technical explanation
In LVM2, the `-L` flag accepts size suffixes like `G` (gigabytes), `M` (megabytes), or `T` (terabytes), while the `-l` flag expects a number of logical extents (e.g., `-l 100`), which depends on the physical extent size of the volume group. Understanding this distinction is critical for accurate storage allocation, especially in environments where precise sizing or snapshot creation is required, such as in Red Hat Enterprise Linux deployments for database or virtual machine storage.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Configure local storage — This question tests Configure local storage — Read the scenario before looking for a memorised answer..
The correct answer is: lvcreate -L 2G -n lvdata vgdata — Option A is correct because the `lvcreate` command with `-L 2G` specifies the size in gigabytes, `-n lvdata` sets the logical volume name, and `vgdata` is the volume group in which the logical volume is created. This syntax follows the standard LVM2 command structure for creating a logical volume of a specified size within an existing volume group.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 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.
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