- A
The TLS secret name in the Ingress spec does not match the actual secret name.
Why wrong: If the secret name didn't match, the Ingress controller would likely fail to fetch the secret and would not serve the certificate at all.
- B
The TLS secret's certificate does not match the hostname used in the Ingress rule.
Why wrong: That would cause a hostname mismatch error, not a certificate authority error.
- C
The Ingress controller must be configured with the --default-ssl-certificate flag.
Why wrong: That flag sets a default certificate, but if a TLS secret is specified, it should be used.
- D
The certificate in the TLS secret is self-signed, not signed by a trusted CA.
Self-signed certificates cause browser warnings. The certificate should be from a trusted CA.
CKA Services and Networking Practice Question
This CKA practice question tests your understanding of services and networking. 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.
You have an Ingress resource with TLS configured. You verify that the TLS secret exists in the same namespace. However, accessing the service via HTTPS returns a certificate error. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The certificate in the TLS secret is self-signed, not signed by a trusted CA.
Option C is correct. The Ingress controller's default certificate is often self-signed. The TLS secret must contain a certificate signed by a trusted CA for browsers to trust. Option A is false: if the secret doesn't exist, the Ingress controller would report an error or use its default. Option B is not required. Option D is about the certificate's CN/SAN, not the CA.
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 TLS secret name in the Ingress spec does not match the actual secret name.
Why it's wrong here
If the secret name didn't match, the Ingress controller would likely fail to fetch the secret and would not serve the certificate at all.
- ✗
The TLS secret's certificate does not match the hostname used in the Ingress rule.
Why it's wrong here
That would cause a hostname mismatch error, not a certificate authority error.
- ✗
The Ingress controller must be configured with the --default-ssl-certificate flag.
Why it's wrong here
That flag sets a default certificate, but if a TLS secret is specified, it should be used.
- ✓
The certificate in the TLS secret is self-signed, not signed by a trusted CA.
Why this is correct
Self-signed certificates cause browser warnings. The certificate should be from a trusted CA.
Clue confirmation
The clue word "most likely" 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
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 CKA 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 CKA 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.
- →
Services and Networking — study guide chapter
Learn the concepts, then practise the questions
- →
Services and Networking practice questions
Targeted practice on this topic area only
- →
All CKA questions
1,005 questions across all exam domains
- →
Certified Kubernetes Administrator CKA study guide
Full concept coverage aligned to exam objectives
- →
CKA practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related CKA practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Cluster Architecture, Installation and Configuration practice questions
Practise CKA questions linked to Cluster Architecture, Installation and Configuration.
Services and Networking practice questions
Practise CKA questions linked to Services and Networking.
Workloads and Scheduling practice questions
Practise CKA questions linked to Workloads and Scheduling.
Storage practice questions
Practise CKA questions linked to Storage.
Troubleshooting practice questions
Practise CKA questions linked to Troubleshooting.
Cluster Architecture, Installation & Configuration practice questions
Practise CKA questions linked to Cluster Architecture, Installation & Configuration.
Workloads & Scheduling practice questions
Practise CKA questions linked to Workloads & Scheduling.
Services & Networking practice questions
Practise CKA questions linked to Services & Networking.
CKA fundamentals practice questions
Practise CKA questions linked to CKA fundamentals.
CKA scenario practice questions
Practise CKA questions linked to CKA scenario.
CKA troubleshooting practice questions
Practise CKA questions linked to CKA troubleshooting.
Practice this exam
Start a free CKA practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this CKA question test?
Services and Networking — This question tests Services and Networking — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The certificate in the TLS secret is self-signed, not signed by a trusted CA. — Option C is correct. The Ingress controller's default certificate is often self-signed. The TLS secret must contain a certificate signed by a trusted CA for browsers to trust. Option A is false: if the secret doesn't exist, the Ingress controller would report an error or use its default. Option B is not required. Option D is about the certificate's CN/SAN, not the CA.
What should I do if I get this CKA question wrong?
Identify which CKA 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 →
Last reviewed: Jun 21, 2026
This CKA 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 CKA exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.