This CKAD practice question tests your understanding of application deployment. 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 of the following are correct statements about Helm?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Values defined in a 'values.yaml' file can be referenced in templates using '{{ .Values.key }}'.
Option A is correct: Helm charts can be shared via repositories. Option B is correct: 'helm rollback' restores a previous revision. Option C is correct: values are injected into templates. Option D is false: Helm does not manage Kubernetes clusters; it deploys resources. Option E is false: Helm 3 uses three-way strategic merge patch, not two-way.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Values defined in a 'values.yaml' file can be referenced in templates using '{{ .Values.key }}'.
Why this is correct
Template engine injects values from values.yaml.
Related concept
Static NAT maps one inside address to one outside address.
✓
The command 'helm rollback RELEASE REVISION' can undo a release to a previous revision.
Why this is correct
Rollback restores a previous release revision.
Related concept
Static NAT maps one inside address to one outside address.
✗
Helm can be used to manage the lifecycle of a Kubernetes cluster itself.
Why it's wrong here
Helm manages applications on a cluster, not the cluster itself.
✗
Helm uses a two-way strategic merge patch during upgrades.
Why it's wrong here
Helm 3 uses three-way strategic merge patch.
✓
Helm charts can be stored in a Helm repository and shared.
Why this is correct
Helm repositories host charts for distribution.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CKAD question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CKAD NAT questions on configuration and troubleshooting.
Application Deployment — This question tests Application Deployment — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Values defined in a 'values.yaml' file can be referenced in templates using '{{ .Values.key }}'. — Option A is correct: Helm charts can be shared via repositories. Option B is correct: 'helm rollback' restores a previous revision. Option C is correct: values are injected into templates. Option D is false: Helm does not manage Kubernetes clusters; it deploys resources. Option E is false: Helm 3 uses three-way strategic merge patch, not two-way.
What should I do if I get this CKAD question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CKAD NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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