CERTIFIED KUBERNETES ADMINISTRATOR (CKA) CERTIFICATION EXAM COMPLETE
PRACTICE TEST BANK QUESTIONS AND ANSWERS | VERIFIED SOLUTIONS |
UPDATED 2026/2027 STUDY GUIDE
Examiner/Administrator: Cloud Native Computing Foundation
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
CERTIFIED KUBERNETES ADMINISTRATOR (CKA)
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
120+ MULTIPLE-CHOICE QUESTIONS
PASSING SCORE: 66%
TESTING TIME: 120 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Cluster Architecture, Installation & Configuration
2. Kubernetes Core Concepts
3. Workloads & Scheduling
4. Services & Networking
5. Storage Management
6. Security & RBAC
7. Cluster Maintenance & Upgrades
8. Troubleshooting & Diagnostics
9. Backup & Recovery
10. Logging, Monitoring & Operational Best Practices
Cloud Native Computing Foundation || ALIGNED WITH CURRENT KUBERNETES
ADMINISTRATION BLUEPRINTS || CLOUD-NATIVE INFRASTRUCTURE OPERATIONS ||
PROFESSIONAL STUDY GUIDE || 100% VERIFIED | GRADED A+ || COMPREHENSIVE
,CERTIFICATION PREPARATION || PREPARED FOR PROFESSIONAL KUBERNETES
ADMINISTRATORS || PROFESSIONAL EXAMINATION USE
Cluster Architecture, Installation & Configuration (Q1–Q8)
Q1. A Kubernetes administrator must initialize a highly available control plane. Which
component is primarily responsible for maintaining the desired cluster state and
making control decisions?
A. kube-proxy
B. kube-scheduler
C. kube-controller-manager
D. containerd
Correct Answer: 🔴 B. kube-scheduler
Explanation: 🔹 The kube-scheduler continuously evaluates unscheduled Pods and
assigns them to appropriate nodes based on resource availability, constraints,
affinities, and policies. kube-controller-manager enforces desired state through
controllers, but scheduling decisions are made by the scheduler. kube-proxy
manages network rules, while containerd is a container runtime rather than a
control-plane decision-making component.
Q2. During a kubeadm-based installation, which certificate authority is responsible
for signing Kubernetes API server certificates by default?
A. Front-proxy CA
B. Service Account Key Pair
C. Cluster CA
D. Etcd Peer Certificate
Correct Answer: 🔴 C. Cluster CA
Explanation: 🔹 The Cluster CA acts as the primary trust anchor within Kubernetes
and signs key control-plane certificates, including API server certificates. Front-
,proxy CA is used for aggregation-layer authentication. Service account keys sign
service account tokens, while etcd peer certificates secure etcd communication.
Q3. A worker node remains in a NotReady state after joining the cluster. Which
command would most directly help diagnose kubelet-related issues?
A. kubectl get ingress
B. journalctl -u kubelet
C. kubectl describe service kubernetes
D. crictl stats
Correct Answer: 🔴 B. journalctl -u kubelet
Explanation: 🔹 Since kubelet is the primary node agent, reviewing its system logs
is often the fastest way to identify registration failures, certificate issues, runtime
errors, or networking problems. The other options provide useful information but
are less targeted for node readiness troubleshooting.
Q4. Which Kubernetes component stores all cluster configuration and state
information?
A. CoreDNS
B. kubelet
C. etcd
D. kube-proxy
Correct Answer: 🔴 C. etcd
Explanation: 🔹 Etcd is a distributed key-value datastore used as Kubernetes' source
of truth. All cluster objects, configuration, secrets, and state data are persisted
there. CoreDNS provides service discovery, kubelet manages nodes, and kube-proxy
handles networking.
, Q5. An administrator wants the API server to reject anonymous requests. Which
configuration action is most appropriate?
A. Disable kubelet authentication
B. Enable anonymous-auth=false on the API server
C. Remove CoreDNS deployment
D. Disable RBAC
Correct Answer: 🔴 B. Enable anonymous-auth=false on the API server
Explanation: 🔹 Setting anonymous-auth=false prevents unauthenticated requests
from being treated as anonymous users. This strengthens security by requiring
authentication before access evaluation. Disabling RBAC would weaken security
rather than improve it.
Q6. Which kubeadm command is used to generate a new worker-node join
command?
A. kubeadm token create --print-join-command
B. kubeadm reset
C. kubeadm config images pull
D. kubeadm certs renew all
Correct Answer: 🔴 A. kubeadm token create --print-join-command
Explanation: 🔹 This command generates a valid bootstrap token and displays the
full join command. The other commands perform cluster reset, image pre-pulling,
and certificate renewal respectively.
Q7. A cluster uses stacked etcd topology. What does this mean?
A. External etcd cluster on dedicated servers
B. Each worker node runs etcd
C. Control-plane nodes host both Kubernetes components and etcd
D. Etcd is embedded inside kube-apiserver
PRACTICE TEST BANK QUESTIONS AND ANSWERS | VERIFIED SOLUTIONS |
UPDATED 2026/2027 STUDY GUIDE
Examiner/Administrator: Cloud Native Computing Foundation
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
CERTIFIED KUBERNETES ADMINISTRATOR (CKA)
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
120+ MULTIPLE-CHOICE QUESTIONS
PASSING SCORE: 66%
TESTING TIME: 120 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Cluster Architecture, Installation & Configuration
2. Kubernetes Core Concepts
3. Workloads & Scheduling
4. Services & Networking
5. Storage Management
6. Security & RBAC
7. Cluster Maintenance & Upgrades
8. Troubleshooting & Diagnostics
9. Backup & Recovery
10. Logging, Monitoring & Operational Best Practices
Cloud Native Computing Foundation || ALIGNED WITH CURRENT KUBERNETES
ADMINISTRATION BLUEPRINTS || CLOUD-NATIVE INFRASTRUCTURE OPERATIONS ||
PROFESSIONAL STUDY GUIDE || 100% VERIFIED | GRADED A+ || COMPREHENSIVE
,CERTIFICATION PREPARATION || PREPARED FOR PROFESSIONAL KUBERNETES
ADMINISTRATORS || PROFESSIONAL EXAMINATION USE
Cluster Architecture, Installation & Configuration (Q1–Q8)
Q1. A Kubernetes administrator must initialize a highly available control plane. Which
component is primarily responsible for maintaining the desired cluster state and
making control decisions?
A. kube-proxy
B. kube-scheduler
C. kube-controller-manager
D. containerd
Correct Answer: 🔴 B. kube-scheduler
Explanation: 🔹 The kube-scheduler continuously evaluates unscheduled Pods and
assigns them to appropriate nodes based on resource availability, constraints,
affinities, and policies. kube-controller-manager enforces desired state through
controllers, but scheduling decisions are made by the scheduler. kube-proxy
manages network rules, while containerd is a container runtime rather than a
control-plane decision-making component.
Q2. During a kubeadm-based installation, which certificate authority is responsible
for signing Kubernetes API server certificates by default?
A. Front-proxy CA
B. Service Account Key Pair
C. Cluster CA
D. Etcd Peer Certificate
Correct Answer: 🔴 C. Cluster CA
Explanation: 🔹 The Cluster CA acts as the primary trust anchor within Kubernetes
and signs key control-plane certificates, including API server certificates. Front-
,proxy CA is used for aggregation-layer authentication. Service account keys sign
service account tokens, while etcd peer certificates secure etcd communication.
Q3. A worker node remains in a NotReady state after joining the cluster. Which
command would most directly help diagnose kubelet-related issues?
A. kubectl get ingress
B. journalctl -u kubelet
C. kubectl describe service kubernetes
D. crictl stats
Correct Answer: 🔴 B. journalctl -u kubelet
Explanation: 🔹 Since kubelet is the primary node agent, reviewing its system logs
is often the fastest way to identify registration failures, certificate issues, runtime
errors, or networking problems. The other options provide useful information but
are less targeted for node readiness troubleshooting.
Q4. Which Kubernetes component stores all cluster configuration and state
information?
A. CoreDNS
B. kubelet
C. etcd
D. kube-proxy
Correct Answer: 🔴 C. etcd
Explanation: 🔹 Etcd is a distributed key-value datastore used as Kubernetes' source
of truth. All cluster objects, configuration, secrets, and state data are persisted
there. CoreDNS provides service discovery, kubelet manages nodes, and kube-proxy
handles networking.
, Q5. An administrator wants the API server to reject anonymous requests. Which
configuration action is most appropriate?
A. Disable kubelet authentication
B. Enable anonymous-auth=false on the API server
C. Remove CoreDNS deployment
D. Disable RBAC
Correct Answer: 🔴 B. Enable anonymous-auth=false on the API server
Explanation: 🔹 Setting anonymous-auth=false prevents unauthenticated requests
from being treated as anonymous users. This strengthens security by requiring
authentication before access evaluation. Disabling RBAC would weaken security
rather than improve it.
Q6. Which kubeadm command is used to generate a new worker-node join
command?
A. kubeadm token create --print-join-command
B. kubeadm reset
C. kubeadm config images pull
D. kubeadm certs renew all
Correct Answer: 🔴 A. kubeadm token create --print-join-command
Explanation: 🔹 This command generates a valid bootstrap token and displays the
full join command. The other commands perform cluster reset, image pre-pulling,
and certificate renewal respectively.
Q7. A cluster uses stacked etcd topology. What does this mean?
A. External etcd cluster on dedicated servers
B. Each worker node runs etcd
C. Control-plane nodes host both Kubernetes components and etcd
D. Etcd is embedded inside kube-apiserver
