This EX200 practice question tests your understanding of manage containers. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Refer to the exhibit. A container named 'db' is running on the host. An administrator runs `podman inspect db` and sees the above output snippet. What can be concluded about the container's network configuration?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The container's port 3306 is bound to all host interfaces.
The output snippet from `podman inspect db` shows `"Ports": {"3306/tcp": [{"HostIp": "0.0.0.0", "HostPort": "3306"}]}`. This indicates that the container's port 3306 is mapped to port 3306 on all host interfaces (0.0.0.0), which is the default bridge networking port binding behavior. Therefore, option C is correct.
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 container is using host networking mode.
Why it's wrong here
Host networking mode would not show an IPAddress separate from the host; the container would share the host's IP.
✗
The container cannot be reached from other containers.
Why it's wrong here
The container has an IP on the bridge network (10.88.0.2), so other containers on the same bridge can reach it.
✓
The container's port 3306 is bound to all host interfaces.
Why this is correct
The HostIp 0.0.0.0 means the port is exposed on every network interface of the host.
Related concept
Read the scenario before looking for a memorised answer.
✗
The container is using bridge networking with a static IP.
Why it's wrong here
The IP address 10.88.0.2 is typical of a dynamic assignment from the default bridge; no static IP configuration is shown.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Red Hat often tests the distinction between host networking mode and bridge networking with port mapping, where candidates mistakenly think that any port binding to 0.0.0.0 implies host networking, but it actually indicates bridge mode with a published port.
Trap categories for this question
Command / output trap
Host networking mode would not show an IPAddress separate from the host; the container would share the host's IP.
Detailed technical explanation
How to think about this question
Under the hood, Podman uses CNI (Container Network Interface) plugins to manage networking. The default bridge network creates a virtual bridge (cni-podman0) and assigns containers IPs from a private subnet (e.g., 10.88.0.0/16). Port bindings to 0.0.0.0 use iptables DNAT rules to forward traffic from the host's port to the container's port. A subtle behavior is that binding to 0.0.0.0 exposes the service on all host IPs, which can be a security concern if the host has multiple network interfaces.
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: The container's port 3306 is bound to all host interfaces. — The output snippet from `podman inspect db` shows `"Ports": {"3306/tcp": [{"HostIp": "0.0.0.0", "HostPort": "3306"}]}`. This indicates that the container's port 3306 is mapped to port 3306 on all host interfaces (0.0.0.0), which is the default bridge networking port binding behavior. Therefore, option C is correct.
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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