- A
kubectl port-forward
Why wrong: This forwards ports to the local machine, not inspect connections.
- B
crictl exec
crictl exec can run ss or netstat inside the container.
- C
falco
Why wrong: Falco monitors syscalls but is not used to run commands inside a container.
- D
kubectl logs
Why wrong: Logs show container logs, not network connections.
Question 476 of 997
Using crictl exec to Inspect Network Connections from Within a Container
This CKS practice question tests your understanding of monitoring, logging and runtime security. 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.
You suspect a pod is making unexpected outbound connections. Which tool can you use to inspect network connections from within the container?
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
✓
crictl exec
Option B is correct because `crictl exec` allows you to run commands inside a container managed by CRI-compatible runtimes (like containerd), enabling you to inspect network connections from within the container using tools like `ss`, `netstat`, or `ip`. This is the direct method to check outbound connections from the container's network namespace, which is isolated from the host.
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.
- ✗
kubectl port-forward
Why it's wrong here
This forwards ports to the local machine, not inspect connections.
- ✓
crictl exec
Why this is correct
crictl exec can run ss or netstat inside the container.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
falco
Why it's wrong here
Falco monitors syscalls but is not used to run commands inside a container.
- ✗
kubectl logs
Why it's wrong here
Logs show container logs, not network connections.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may choose `kubectl logs` thinking it shows network activity, but logs only capture application output, not kernel-level connection states, while `crictl exec` provides direct access to the container's network namespace.
Trap categories for this question
Command / output trap
Falco monitors syscalls but is not used to run commands inside a container.
Detailed technical explanation
How to think about this question
Under the hood, `crictl exec` uses the CRI (Container Runtime Interface) to execute commands directly in the container's PID and network namespace, giving you access to `/proc/net/tcp`, `/proc/net/udp`, and tools like `ss -tunap` to list active connections. In a real-world scenario, if a pod is compromised and making unexpected outbound connections, you would use `crictl exec` to run `ss -tunap` or `netstat -tunap` inside the container to identify the process and destination IPs, which is not possible with `kubectl logs` or `port-forward`.
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 CKS 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.
- →
Monitoring, Logging and Runtime Security — study guide chapter
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FAQ
Questions learners often ask
What does this CKS question test?
Monitoring, Logging and Runtime Security — This question tests Monitoring, Logging and Runtime Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: crictl exec — Option B is correct because `crictl exec` allows you to run commands inside a container managed by CRI-compatible runtimes (like containerd), enabling you to inspect network connections from within the container using tools like `ss`, `netstat`, or `ip`. This is the direct method to check outbound connections from the container's network namespace, which is isolated from the host.
What should I do if I get this CKS 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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Last reviewed: Jul 4, 2026
This CKS practice question is part of Courseiva's free CNCF 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 CKS exam.
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