This EX200 practice question tests your understanding of manage containers. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
A DevOps engineer needs to run a container that stores persistent data in a location managed by Podman, ensuring the data survives container removal and can be easily backed up. Which approach should the engineer use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a Podman volume (e.g., --volume myvol:/container/data)
Option C is correct because Podman volumes are managed by Podman itself, storing data in a dedicated directory (typically under /var/lib/containers/storage/volumes). This ensures data persists independently of the container lifecycle, survives container removal, and can be easily backed up using commands like `podman volume backup` or by copying the volume directory. Unlike bind mounts, Podman volumes are fully managed, avoiding permission issues and providing a clean abstraction for persistent storage.
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.
✗
Use a bind mount (e.g., --volume /host/data:/container/data)
Why it's wrong here
Bind mounts are host-dependent and require manual management; they are not as portable or easy to back up as volumes.
✗
Use the --rm flag when running the container
Why it's wrong here
The --rm flag removes the container and its storage automatically after exit, which is the opposite of persistence.
✓
Use a Podman volume (e.g., --volume myvol:/container/data)
Why this is correct
Podman volumes are fully managed by Podman, persist across container lifecycles, and are easy to back up or migrate.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a tmpfs mount (e.g., --tmpfs /container/data)
Why it's wrong here
tmpfs mounts are ephemeral and stored in memory; they are lost when the container stops and do not persist between runs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse bind mounts (Option A) with Podman volumes, assuming both are equally managed, but bind mounts require explicit host path management and lack Podman's lifecycle commands, making them less suitable for automated backup and portability scenarios tested in EX200.
Detailed technical explanation
How to think about this question
Podman volumes use the `container/storage` library, which creates a volume as a directory on the host filesystem with a unique ID, managed by Podman's volume driver (default: `local`). This allows features like volume pruning, listing, and backup via `podman volume export` or direct filesystem snapshots. In contrast, bind mounts bypass Podman's management layer, making them harder to migrate or replicate across hosts, which is critical in CI/CD pipelines or multi-node deployments.
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.
Manage containers — This question tests Manage containers — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use a Podman volume (e.g., --volume myvol:/container/data) — Option C is correct because Podman volumes are managed by Podman itself, storing data in a dedicated directory (typically under /var/lib/containers/storage/volumes). This ensures data persists independently of the container lifecycle, survives container removal, and can be easily backed up using commands like `podman volume backup` or by copying the volume directory. Unlike bind mounts, Podman volumes are fully managed, avoiding permission issues and providing a clean abstraction for persistent storage.
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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