- A
Configure the log collector to use TLS when shipping logs to a central system.
TLS encrypts logs in transit.
- B
Set container 'stdout' logging only, avoiding file-based logs.
Why wrong: Stdout logs are not encrypted unless the container output is encrypted.
- C
Store logs in a backend that supports encryption at rest (e.g., S3 with SSE).
Encryption at rest protects stored logs.
- D
Run log collectors in a dedicated namespace with network policies limiting access.
Isolation and network policies restrict unauthorized access.
- E
Disable log rotation to prevent log tampering during rotation.
Why wrong: Disabling rotation causes disk full and data loss.
Question 275 of 997
Container Logs Security: Integrity & Confidentiality
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.
Which THREE practices help ensure the integrity and confidentiality of container logs in a Kubernetes cluster?
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
✓
Configure the log collector to use TLS when shipping logs to a central system.
Option A is correct because configuring the log collector to use TLS (e.g., Fluentd with TLS output plugin or Filebeat with SSL/TLS) encrypts log data in transit, preventing eavesdropping or tampering during shipping to a central system like Elasticsearch or Splunk. This directly protects confidentiality and integrity against man-in-the-middle attacks on the network path.
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.
- ✓
Configure the log collector to use TLS when shipping logs to a central system.
Why this is correct
TLS encrypts logs in transit.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set container 'stdout' logging only, avoiding file-based logs.
Why it's wrong here
Stdout logs are not encrypted unless the container output is encrypted.
- ✓
Store logs in a backend that supports encryption at rest (e.g., S3 with SSE).
Why this is correct
Encryption at rest protects stored logs.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Run log collectors in a dedicated namespace with network policies limiting access.
Why this is correct
Isolation and network policies restrict unauthorized access.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable log rotation to prevent log tampering during rotation.
Why it's wrong here
Disabling rotation causes disk full and data loss.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CNCF often tests the misconception that disabling log rotation improves security, but in reality, rotation is a standard operational practice that does not inherently compromise integrity; the trap is confusing operational controls with security controls.
Trap categories for this question
Command / output trap
Stdout logs are not encrypted unless the container output is encrypted.
Detailed technical explanation
How to think about this question
TLS for log shipping typically uses mTLS (mutual TLS) to authenticate both the log collector and the central receiver, ensuring that only authorized collectors can send logs and that logs are encrypted with ciphers like TLS 1.3. Encryption at rest, such as S3 Server-Side Encryption (SSE-S3 or SSE-KMS), protects logs stored in object storage from unauthorized access at the storage layer, which is critical for compliance with standards like PCI-DSS or HIPAA. Network policies in a dedicated namespace (e.g., using Kubernetes NetworkPolicy with podSelector and ingress/egress rules) restrict which pods can communicate with the log collector, reducing the attack surface for log exfiltration or injection.
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.
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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: Configure the log collector to use TLS when shipping logs to a central system. — Option A is correct because configuring the log collector to use TLS (e.g., Fluentd with TLS output plugin or Filebeat with SSL/TLS) encrypts log data in transit, preventing eavesdropping or tampering during shipping to a central system like Elasticsearch or Splunk. This directly protects confidentiality and integrity against man-in-the-middle attacks on the network path.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 30, 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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