This EX200 practice question tests your understanding of manage containers. 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.
A system administrator wants to run a container as a systemd service that restarts automatically after a system reboot. Which approach follows Red Hat best practices?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use 'podman generate systemd --new --name mycontainer' and enable the generated service.
Option D is correct because `podman generate systemd --new --name mycontainer` creates a systemd unit file that defines the container as a transient service with `Restart=always` and `WantedBy=multi-user.target`, ensuring the container starts automatically after a reboot. This approach aligns with Red Hat best practices for managing containers as systemd services, leveraging systemd's native dependency and restart capabilities rather than relying on legacy or non-standard methods.
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.
✗
Create a cron job that checks if the container is running and starts it if not.
Why it's wrong here
Cron is not designed for service management; polling is inefficient.
✗
Create a sysvinit script that calls podman commands.
Why it's wrong here
Sysvinit is deprecated; modern systems should use systemd unit files.
✗
Add 'podman run ...' to /etc/rc.local.
Why it's wrong here
rc.local is not a systemd service and does not provide proper lifecycle management.
✓
Use 'podman generate systemd --new --name mycontainer' and enable the generated service.
Why this is correct
This generates a proper systemd unit file with correct dependencies and restart behavior.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think any method that runs a command at boot (like cron or rc.local) is sufficient, but Red Hat specifically tests that systemd is the standard service manager in RHEL 8/9 and that `podman generate systemd` is the recommended way to create persistent container services with proper restart and dependency handling.
Detailed technical explanation
How to think about this question
Under the hood, `podman generate systemd --new` produces a unit file that uses `ExecStartPre` to remove any existing container with the same name, then runs `podman run` with the specified options, and sets `Restart=always` with a default `RestartSec` of 5 seconds. This ensures the container is recreated from scratch on each start, which is critical for stateless containers; in a real-world scenario, this pattern is used in production to integrate containerized applications with systemd's logging (journald) and resource control (cgroups) without relying on external orchestration tools.
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.
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 'podman generate systemd --new --name mycontainer' and enable the generated service. — Option D is correct because `podman generate systemd --new --name mycontainer` creates a systemd unit file that defines the container as a transient service with `Restart=always` and `WantedBy=multi-user.target`, ensuring the container starts automatically after a reboot. This approach aligns with Red Hat best practices for managing containers as systemd services, leveraging systemd's native dependency and restart capabilities rather than relying on legacy or non-standard methods.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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