CKS Monitoring, Logging and Runtime Security Practice Question
This CKS practice question tests your understanding of monitoring, logging and runtime security. 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.
Which THREE of the following are valid techniques for isolating a compromised pod during incident response? (Choose three)
Why wrong: This is not a runtime isolation technique; it requires redeployment.
B
Apply a NetworkPolicy that denies all ingress and egress traffic to the pod
This isolates the pod at the network level.
C
Cordon the node where the pod is running
Cordoning prevents new pods from being scheduled on that node, but does not affect existing pods; however, it is part of isolation for forensic analysis.
D
Add a label 'isolated=true' to the pod and apply a NetworkPolicy that selects that label and denies all traffic
This is a practical way to target the pod for isolation.
E
Delete the pod immediately to stop the threat
Why wrong: Deletion is a response, not isolation; it may destroy evidence.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Apply a NetworkPolicy that denies all ingress and egress traffic to the pod
Isolation techniques include using NetworkPolicy to restrict network traffic, adding a label to the pod and applying a policy that denies all traffic, and cordoning the node to prevent new pods. Deleting the pod is a response action but not isolation; modifying the container image is not isolation.
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.
✗
Modify the container image to disable networking
Why it's wrong here
This is not a runtime isolation technique; it requires redeployment.
✓
Apply a NetworkPolicy that denies all ingress and egress traffic to the pod
Why this is correct
This isolates the pod at the network level.
Related concept
Read the scenario before looking for a memorised answer.
✓
Cordon the node where the pod is running
Why this is correct
Cordoning prevents new pods from being scheduled on that node, but does not affect existing pods; however, it is part of isolation for forensic analysis.
Related concept
Read the scenario before looking for a memorised answer.
✓
Add a label 'isolated=true' to the pod and apply a NetworkPolicy that selects that label and denies all traffic
Why this is correct
This is a practical way to target the pod for isolation.
Related concept
Read the scenario before looking for a memorised answer.
✗
Delete the pod immediately to stop the threat
Why it's wrong here
Deletion is a response, not isolation; it may destroy evidence.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CKS question in full detail.
Identify which CKS exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Apply a NetworkPolicy that denies all ingress and egress traffic to the pod — Isolation techniques include using NetworkPolicy to restrict network traffic, adding a label to the pod and applying a policy that denies all traffic, and cordoning the node to prevent new pods. Deleting the pod is a response action but not isolation; modifying the container image is not isolation.
What should I do if I get this CKS question wrong?
Identify which CKS exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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