Question 49 of 527

Create and configure file systems →mediumMultiple ChoiceObjective-mapped

EX200 Create and configure file systems Practice Question

This EX200 practice question tests your understanding of create and configure file systems. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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

# df -h /data
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdc1       9.8G  5.0G  4.8G  51% /data
# xfs_info /dev/sdc1
meta-data=/dev/sdc1              isize=512    agcount=4, agsize=655360 blk
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1
    data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
    naming   =version 2          bsize=4096   ascii-ci=0, ftype=1
    log      =internal           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
    reflink  =                    noalign
# xfs_growfs /dev/sdc1
meta-data=/dev/sdc1              isize=512    agcount=4, agsize=655360 blk
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1
    data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
    naming   =version 2          bsize=4096   ascii-ci=0, ftype=1
    log      =internal           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
    reflink  =                    noalign
data blocks changed from 2621440 to 5242880

Refer to the exhibit. An administrator runs xfs_growfs on /dev/sdc1. What is the most likely reason the command succeeded without prior partition resizing?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1mediummultiple choice

Full question →

Exhibit

# df -h /data
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdc1       9.8G  5.0G  4.8G  51% /data
# xfs_info /dev/sdc1
meta-data=/dev/sdc1              isize=512    agcount=4, agsize=655360 blk
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1
    data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
    naming   =version 2          bsize=4096   ascii-ci=0, ftype=1
    log      =internal           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
    reflink  =                    noalign
# xfs_growfs /dev/sdc1
meta-data=/dev/sdc1              isize=512    agcount=4, agsize=655360 blk
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1
    data     =                       bsize=4096   blocks=2621440, imaxpct=25
         =                       sunit=0      swidth=0 blks
    naming   =version 2          bsize=4096   ascii-ci=0, ftype=1
    log      =internal           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
    reflink  =                    noalign
data blocks changed from 2621440 to 5242880

A
The partition was automatically resized by xfs_growfs
Why wrong: Incorrect. xfs_growfs does not resize partitions or LVs.
B
The underlying block device (partition or logical volume) was extended before the command
Correct. xfs_growfs grows the filesystem to fill the device; the device must already be larger.
C
The filesystem was already using the full partition size and the command had no effect
Why wrong: Incorrect. The output shows blocks changed, so the filesystem was grown.
D
The filesystem was mounted with the 'grow' option allowing online growth
Why wrong: Incorrect. There is no such mount option.

Full breakdown with real-world context →

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

✓

The underlying block device (partition or logical volume) was extended before the command

The output shows data blocks changed from 2621440 to 5242880, doubling the size. This suggests the underlying block device (partition or LVM) was already extended. xfs_growfs only grows the filesystem to match the device size; it does not resize the device itself.

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.

✗
The partition was automatically resized by xfs_growfs
Why it's wrong here
Incorrect. xfs_growfs does not resize partitions or LVs.
✓
The underlying block device (partition or logical volume) was extended before the command
Why this is correct
Correct. xfs_growfs grows the filesystem to fill the device; the device must already be larger.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The filesystem was already using the full partition size and the command had no effect
Why it's wrong here
Incorrect. The output shows blocks changed, so the filesystem was grown.
✗
The filesystem was mounted with the 'grow' option allowing online growth
Why it's wrong here
Incorrect. There is no such mount option.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Trap categories for this question

Command / output trap
Incorrect. The output shows blocks changed, so the filesystem was grown.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

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.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
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 EX200 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this EX200 question test?

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: The underlying block device (partition or logical volume) was extended before the command — The output shows data blocks changed from 2621440 to 5242880, doubling the size. This suggests the underlying block device (partition or LVM) was already extended. xfs_growfs only grows the filesystem to match the device size; it does not resize the device itself.

What should I do if I get this EX200 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 25, 2026

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