EX294 Coordinate rolling updates Practice Question
This EX294 practice question tests your understanding of coordinate rolling updates. 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.
An Ansible playbook uses the 'deployment' resource with a 'rolling_update' strategy. Which module is typically used to manage this in a Kubernetes/OpenShift environment?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
kubernetes.core.k8s
The `kubernetes.core.k8s` module is the correct choice because it directly manages Kubernetes/OpenShift resources, including Deployments, and supports rolling update strategies natively. It interacts with the Kubernetes API to apply declarative configurations, handling the rolling update logic (e.g., `maxSurge`, `maxUnavailable`) without requiring manual orchestration via shell commands or file copies.
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.
✗
ansible.builtin.copy
Why it's wrong here
Copy manages file transfers, not deployments.
✗
ansible.builtin.command
Why it's wrong here
Command runs arbitrary commands but lacks declarative deployment management.
✓
kubernetes.core.k8s
Why this is correct
The k8s module manages Kubernetes resources including deployments with rollout strategies.
Related concept
Read the scenario before looking for a memorised answer.
✗
ansible.builtin.shell
Why it's wrong here
Shell executes commands but does not manage deployments declaratively.
✗
ansible.builtin.service
Why it's wrong here
Service manages system services, not container deployments.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse managing system services (via `service`) or executing kubectl commands (via `command`/`shell`) with the proper Ansible module designed for Kubernetes resource orchestration, leading them to pick a generic module instead of the domain-specific `kubernetes.core.k8s`.
Trap categories for this question
Command / output trap
Command runs arbitrary commands but lacks declarative deployment management.
Detailed technical explanation
How to think about this question
Under the hood, `kubernetes.core.k8s` uses the `k8s` Python client to communicate with the Kubernetes API server via REST (typically on port 6443). When applying a Deployment with a `rolling_update` strategy, the module sends a PATCH or PUT request to the `/apis/apps/v1/namespaces/{namespace}/deployments/{name}` endpoint, allowing the API server to orchestrate the gradual replacement of Pods based on parameters like `maxSurge` (e.g., 25%) and `maxUnavailable` (e.g., 25%). A real-world scenario: if you need to update a Deployment's container image across 100 replicas, the module ensures zero-downtime by controlling the rollout pace, whereas using `command` or `shell` with `kubectl` would require manual idempotency checks and risk race conditions.
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 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.
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.
Coordinate rolling updates — This question tests Coordinate rolling updates — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: kubernetes.core.k8s — The `kubernetes.core.k8s` module is the correct choice because it directly manages Kubernetes/OpenShift resources, including Deployments, and supports rolling update strategies natively. It interacts with the Kubernetes API to apply declarative configurations, handling the rolling update logic (e.g., `maxSurge`, `maxUnavailable`) without requiring manual orchestration via shell commands or file copies.
What should I do if I get this EX294 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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Question Discussion
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