- A
Use Pod Disruption Budgets to ensure a minimum number of pods are available during voluntary disruptions.
Helps maintain availability during updates.
- B
Configure the Cluster Autoscaler to add nodes when pods are unschedulable.
Replaces failed nodes automatically.
- C
Deploy worker nodes across multiple Availability Zones.
Ensures node diversity.
- D
Deploy worker nodes in a single Availability Zone to reduce cross-AZ data transfer costs.
Why wrong: Single AZ is not highly available.
- E
Use a single large instance type for all worker nodes to simplify management.
Why wrong: Single instance type is not a resilience strategy.
Question 886 of 1,750
DOP-C02 Resilient Cloud Solutions Practice Question
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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.
A company runs a containerized application on Amazon EKS. The application must be highly available across multiple Availability Zones and must automatically recover from node failures. Which THREE steps should be taken?
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
✓
Use Pod Disruption Budgets to ensure a minimum number of pods are available during voluntary disruptions.
Pod Disruption Budgets (PDBs) are correct because they allow you to specify the minimum number of pods that must remain available during voluntary disruptions, such as node drains or cluster upgrades. This ensures that the application maintains high availability even when Kubernetes performs planned maintenance, preventing all replicas from being taken down simultaneously.
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.
- ✓
Use Pod Disruption Budgets to ensure a minimum number of pods are available during voluntary disruptions.
Why this is correct
Helps maintain availability during updates.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Configure the Cluster Autoscaler to add nodes when pods are unschedulable.
Why this is correct
Replaces failed nodes automatically.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Deploy worker nodes across multiple Availability Zones.
Why this is correct
Ensures node diversity.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Deploy worker nodes in a single Availability Zone to reduce cross-AZ data transfer costs.
Why it's wrong here
Single AZ is not highly available.
- ✗
Use a single large instance type for all worker nodes to simplify management.
Why it's wrong here
Single instance type is not a resilience strategy.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think deploying in a single AZ or using a single instance type simplifies management and reduces costs, but the DOP-C02 exam specifically tests the principle of designing for failure across multiple AZs and instance diversity to achieve true high availability.
Detailed technical explanation
How to think about this question
The Cluster Autoscaler works by monitoring pod scheduling failures due to insufficient resources and scaling the node group accordingly; it integrates with AWS Auto Scaling Groups to add or remove EC2 instances. For multi-AZ resilience, the node group should span at least three Availability Zones, and the Cluster Autoscaler must be configured with `--balance-similar-node-groups` and `--skip-nodes-with-local-storage=false` to avoid premature scaling decisions. In a real-world scenario, combining PDBs with the Cluster Autoscaler ensures that during a node failure, the autoscaler can launch new nodes in a healthy AZ while PDBs prevent the scheduler from evicting critical pods from remaining nodes.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Pod Disruption Budgets to ensure a minimum number of pods are available during voluntary disruptions. — Pod Disruption Budgets (PDBs) are correct because they allow you to specify the minimum number of pods that must remain available during voluntary disruptions, such as node drains or cluster upgrades. This ensures that the application maintains high availability even when Kubernetes performs planned maintenance, preventing all replicas from being taken down simultaneously.
What should I do if I get this DOP-C02 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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Last reviewed: Jul 4, 2026
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