This CKA practice question tests your understanding of cluster architecture, installation and configuration. 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 TWO of the following are valid methods to restore an etcd cluster from a snapshot? (Select 2)
Restarting etcd pod
Why wrong: Restarting does not restore data from a snapshot.
Using etcd operator with a backup CR
The etcd operator can restore from backups.
etcdctl snapshot restore
This restores from a snapshot file.
kubeadm reset
Why wrong: kubeadm resets the cluster but does not restore etcd data.
kubectl apply -f etcd-backup.yaml
Why wrong: kubectl apply is not used for etcd restore.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Using etcd operator with a backup CR
Option B is correct because the etcd operator, commonly used in Kubernetes environments managed by operators, provides a custom resource (CR) for backup and restore. When a backup CR is applied, the operator automates the process of restoring an etcd cluster from a previously taken snapshot, handling the necessary steps like stopping etcd, restoring data, and restarting the cluster. Option C is correct because `etcdctl snapshot restore` is the native etcd command-line tool that directly restores an etcd cluster from a a snapshot file, which is the standard method for manual restoration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Restarting etcd pod
Why it's wrong here
Restarting does not restore data from a snapshot.
Using etcd operator with a backup CR
Why this is correct
The etcd operator can restore from backups.
Related concept
Read the scenario before looking for a memorised answer.
etcdctl snapshot restore
Why this is correct
This restores from a snapshot file.
Related concept
Read the scenario before looking for a memorised answer.
kubeadm reset
Why it's wrong here
kubeadm resets the cluster but does not restore etcd data.
kubectl apply -f etcd-backup.yaml
Why it's wrong here
kubectl apply is not used for etcd restore.
Common exam traps
The trap here is that candidates often confuse restarting a pod (which only reloads the current data) with restoring from a backup, or they mistakenly think `kubectl apply` can directly restore etcd because it's a common Kubernetes command, but etcd restoration requires specific snapshot handling tools.
Detailed technical explanation
The `etcdctl snapshot restore` command works by creating a new etcd data directory from the snapshot file, which can then be used to start a new etcd member or replace an existing one. The etcd operator's backup CR leverages the operator's reconciliation loop to automate the restore workflow, including updating the etcd cluster's member list and ensuring quorum is maintained. In real-world scenarios, restoring a snapshot is critical for disaster recovery, and using the wrong method (e.g., restarting the pod) can lead to data loss or cluster inconsistency.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Cluster Architecture, Installation and Configuration — study guide chapter
Learn the concepts, then practise the questions
Cluster Architecture, Installation and Configuration 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
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise CKA questions linked to Cluster Architecture, Installation and Configuration.
Practise CKA questions linked to Services and Networking.
Practise CKA questions linked to Workloads and Scheduling.
Practise CKA questions linked to Storage.
Practise CKA questions linked to Troubleshooting.
Practise CKA questions linked to Cluster Architecture, Installation & Configuration.
Practise CKA questions linked to Workloads & Scheduling.
Practise CKA questions linked to Services & Networking.
Practise CKA questions linked to CKA fundamentals.
Practise CKA questions linked to CKA scenario.
Practise CKA questions linked to CKA troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Cluster Architecture, Installation and Configuration — This question tests Cluster Architecture, Installation and Configuration — Read the scenario before looking for a memorised answer..
The correct answer is: Using etcd operator with a backup CR — Option B is correct because the etcd operator, commonly used in Kubernetes environments managed by operators, provides a custom resource (CR) for backup and restore. When a backup CR is applied, the operator automates the process of restoring an etcd cluster from a previously taken snapshot, handling the necessary steps like stopping etcd, restoring data, and restarting the cluster. Option C is correct because `etcdctl snapshot restore` is the native etcd command-line tool that directly restores an etcd cluster from a a snapshot file, which is the standard method for manual restoration.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 24, 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.