- A
Configure a pod disruption budget to prevent too many pods from being terminated simultaneously.
Why wrong: Pod disruption budgets are for voluntary disruptions, not node failures.
- B
Use a horizontal pod autoscaler to increase the number of pods during high load.
Why wrong: Horizontal pod autoscaler scales based on metrics, not node failures.
- C
Configure the EKS managed node group with a health check and ensure that the Kubernetes control plane automatically reschedules pods from failed nodes.
EKS managed node groups automatically replace unhealthy nodes, and Kubernetes reschedules pods.
- D
Use a cluster autoscaler to automatically add new nodes when pods are pending.
Why wrong: Cluster autoscaler adds nodes but does not reschedule pods from failed nodes.
Quick Answer
The answer is to configure the EKS managed node group with a health check and rely on the Kubernetes control plane to automatically reschedule pods from failed nodes. This is correct because Amazon EKS integrates the node group’s health checks with the Kubernetes node controller, which detects when a node becomes unreachable and, after a default five-minute pod-eviction timeout, taints the node and reschedules its pods onto healthy nodes. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding of the distinction between Kubernetes-native recovery mechanisms and AWS scaling tools—a common trap is confusing the cluster autoscaler (which adds nodes) or the horizontal pod autoscaler (which adjusts replica counts) with the node controller’s rescheduling behavior. Remember that node failure recovery is built into Kubernetes itself, not an external AWS service. A helpful memory tip: “Node down? K8s reschedules; Autoscaler adds nodes, not pods.”
DOP-C02 Resilient Cloud Solutions Practice Question
This DOP-C02 practice question tests your understanding of resilient cloud solutions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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. They want to ensure that if a node fails, the pods are rescheduled on healthy nodes. Which configuration is necessary?
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 EKS managed node group with a health check and ensure that the Kubernetes control plane automatically reschedules pods from failed nodes.
Option A is correct because EKS manages node health and Kubernetes automatically reschedules pods from failed nodes. Option B is wrong because pod disruption budgets limit voluntary disruptions, not node failures. Option C is wrong because cluster autoscaler adds nodes, but does not reschedule pods from failed nodes. Option D is wrong because horizontal pod autoscaler scales pods based on load, not node failures.
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.
- ✗
Configure a pod disruption budget to prevent too many pods from being terminated simultaneously.
Why it's wrong here
Pod disruption budgets are for voluntary disruptions, not node failures.
- ✗
Use a horizontal pod autoscaler to increase the number of pods during high load.
Why it's wrong here
Horizontal pod autoscaler scales based on metrics, not node failures.
- ✓
Configure the EKS managed node group with a health check and ensure that the Kubernetes control plane automatically reschedules pods from failed nodes.
Why this is correct
EKS managed node groups automatically replace unhealthy nodes, and Kubernetes reschedules pods.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Use a cluster autoscaler to automatically add new nodes when pods are pending.
Why it's wrong here
Cluster autoscaler adds nodes but does not reschedule pods from failed nodes.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
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 DOP-C02 NAT questions on configuration and troubleshooting.
- →
Resilient Cloud Solutions — study guide chapter
Learn the concepts, then practise the questions
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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 — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Configure the EKS managed node group with a health check and ensure that the Kubernetes control plane automatically reschedules pods from failed nodes. — Option A is correct because EKS manages node health and Kubernetes automatically reschedules pods from failed nodes. Option B is wrong because pod disruption budgets limit voluntary disruptions, not node failures. Option C is wrong because cluster autoscaler adds nodes, but does not reschedule pods from failed nodes. Option D is wrong because horizontal pod autoscaler scales pods based on load, not node failures.
What should I do if I get this DOP-C02 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 DOP-C02 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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Last reviewed: Jun 20, 2026
This DOP-C02 practice question is part of Courseiva's free Amazon Web Services 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 DOP-C02 exam.
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