Quick Answer
The answer is to make the kernel re-read the partition table. This is the primary purpose of the `partprobe` command in Linux: it updates the kernel’s in-memory representation of the disk’s partitions without requiring a system reboot, ensuring that newly created or modified partitions on a device like `/dev/sdc` are immediately recognized and accessible by the operating system. On the Red Hat Certified System Administrator EX200 exam, this concept tests your understanding of how the kernel interacts with storage devices after partitioning—a common trap is assuming a reboot is always needed, or confusing `partprobe` with `partx` or `fdisk -l`. A reliable memory tip is to think of “probe” as “probe the kernel to re-read the table,” or simply remember that `partprobe` prevents a reboot by syncing the kernel’s view with the disk’s actual partition layout.
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.
After creating a new partition on /dev/sdc, the administrator runs 'partprobe' to inform the kernel of the change. What is the primary purpose of partprobe?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
To create a filesystem label
Why wrong: That's e2label or similar.
To repair a damaged partition table
Why wrong: That's gdisk or fdisk repair.
To format the partition with a filesystem
Why wrong: That's mkfs.
To make the kernel re-read the partition table
Correct: partprobe updates kernel partition table.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
To make the kernel re-read the partition table
The `partprobe` command is used to inform the operating system kernel of changes to the partition table without requiring a system reboot. After creating a new partition on `/dev/sdc`, running `partprobe` makes the kernel re-read the partition table from the disk, ensuring the new partition is recognized and accessible. This is essential for the kernel to update its in-memory representation of the disk's partitions.
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.
To create a filesystem label
Why it's wrong here
That's e2label or similar.
To repair a damaged partition table
Why it's wrong here
That's gdisk or fdisk repair.
To format the partition with a filesystem
Why it's wrong here
That's mkfs.
To make the kernel re-read the partition table
Why this is correct
Correct: partprobe updates kernel partition table.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse `partprobe` with `partx` or `mkfs`, mistakenly thinking it formats or repairs partitions, when its sole purpose is to synchronize the kernel's partition table with the disk's actual partition layout.
Trap categories for this question
Similar concept trap
That's e2label or similar.
Detailed technical explanation
Under the hood, `partprobe` works by sending a BLKRRPART (block device re-read partition) ioctl call to the kernel, which triggers a rescan of the partition table from the disk's MBR or GPT header. In some cases, if the partition is in use (e.g., mounted), `partprobe` may fail, requiring a reboot or use of `partx` to update the kernel's partition table without a full rescan. This is particularly important in production environments where rebooting to recognize new partitions is not feasible.
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.
Configure local storage — study guide chapter
Learn the concepts, then practise the questions
Configure local storage 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
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise EX200 questions linked to Operate running systems.
Practise EX200 questions linked to Configure local storage.
Practise EX200 questions linked to Create and configure file systems.
Practise EX200 questions linked to Deploy, configure, and maintain systems.
Practise EX200 questions linked to Manage users and groups.
Practise EX200 questions linked to Manage security.
Practise EX200 questions linked to Manage containers.
Practise EX200 questions linked to Create simple shell scripts.
Practise EX200 questions linked to Essential Tools.
Practise EX200 questions linked to EX200 fundamentals.
Practise EX200 questions linked to EX200 scenario.
Practise EX200 questions linked to EX200 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Configure local storage — This question tests Configure local storage — Read the scenario before looking for a memorised answer..
The correct answer is: To make the kernel re-read the partition table — The `partprobe` command is used to inform the operating system kernel of changes to the partition table without requiring a system reboot. After creating a new partition on `/dev/sdc`, running `partprobe` makes the kernel re-read the partition table from the disk, ensuring the new partition is recognized and accessible. This is essential for the kernel to update its in-memory representation of the disk's partitions.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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 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.
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.