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| Certification Vendor: | Linux Foundation |
|---|---|
| Exam Name: | Certified Kubernetes Administrator (CKA) Program Exam |
| Exam Number: | CKA |
| Real Exam Qty: | 15-20 |
| Related Certifications: | Certified Kubernetes Application Developer (CKAD) Certified Kubernetes Security Specialist (CKS) |
| Available Languages: | English |
| Certificate Validity Period: | 2 years |
| Exam Duration: | 120 minutes |
| Exam Price: | $445 USD |
| Exam Format: | Performance-based |
| Passing Score: | 66% |
| Sample Questions: | Linux Foundation CKA Sample Questions |
| Exam Way: | Online, proctored, performance-based exam. Candidates solve problems from a command line. |
| Pre Condition: | No prerequisites required. Candidates should have a conceptual and practical understanding of Kubernetes components and native objects. |
| Official Syllabus URL: | https://www.cncf.io/training/certification/cka/ |
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The CKA Program Certification Exam is highly regarded in the industry and is recognized as a valuable credential for Kubernetes administrators. Certified Kubernetes Administrator (CKA) Program Exam certification demonstrates that the candidate has the skills and knowledge required to design, deploy, and maintain Kubernetes clusters in production environments. CKA Exam is designed to be challenging, and candidates are expected to have a strong understanding of Kubernetes architecture, networking, storage, and security. Certified Kubernetes Administrator (CKA) Program Exam certification is valid for two years, after which candidates must recertify to maintain their credentials.
NEW QUESTION # 60
Check to see how many worker nodes are ready (not including nodes tainted NoSchedule) and write the number to /opt/KUCC00104/kucc00104.txt.
Answer:
Explanation:
solution
NEW QUESTION # 61
Score: 7%
Task
Create a new nginx Ingress resource as follows:
* Name: ping
* Namespace: ing-internal
* Exposing service hi on path /hi using service port 5678
Answer:
Explanation:
See the solution below.
Explanation
Solution:
vi ingress.yaml
#
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ping
namespace: ing-internal
spec:
rules:
- http:
paths:
- path: /hi
pathType: Prefix
backend:
service:
name: hi
port:
number: 5678
#
kubectl create -f ingress.yaml
NEW QUESTION # 62
List all persistent volumes sorted bycapacity, saving the fullkubectloutput to
/opt/KUCC00102/volume_list. Usekubectl 's own functionality forsorting the output, and do not manipulate it any further.
Answer:
Explanation:
See the solution below.
Explanation
solution
NEW QUESTION # 63
Score: 7%
Task
Create a new NetworkPolicy named allow-port-from-namespace in the existing namespace echo. Ensure that the new NetworkPolicy allows Pods in namespace my-app to connect to port 9000 of Pods in namespace echo.
Further ensure that the new NetworkPolicy:
* does not allow access to Pods, which don't listen on port 9000
* does not allow access from Pods, which are not in namespace my-app
Answer:
Explanation:
See the solution below.
Explanation
Solution:
#network.yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: allow-port-from-namespace
namespace: internal
spec:
podSelector:
matchLabels: {
}
policyTypes:
- Ingress
ingress:
- from:
- podSelector: {
}
ports:
- protocol: TCP
port: 8080
#spec.podSelector namespace pod
kubectl create -f network.yaml
NEW QUESTION # 64
You must connect to the correct host.
Failure to do so may result in a zero score.
[candidate@base] $ ssh Cka000049
Task
Perform the following tasks:
Create a new PriorityClass named high-priority for user-workloads with a value that is one less than the highest existing user-defined priority class value.
Patch the existing Deployment busybox-logger running in the priority namespace to use the high-priority priority class.
Answer:
Explanation:
Task Summary
* SSH into the correct node: cka000049
* Find the highest existing user-defined PriorityClass
* Create a new PriorityClass high-priority with a value one less
* Patch Deployment busybox-logger (in namespace priority) to use this new PriorityClass Step-by-Step Solution
1## SSH into the correct node
bash
CopyEdit
ssh cka000049
## Skipping this = zero score
2## Find the highest existing user-defined PriorityClass
Run:
bash
CopyEdit
kubectl get priorityclasses.scheduling.k8s.io
Example output:
vbnet
CopyEdit
NAME VALUE GLOBALDEFAULT AGE
default-low 1000 false 10d
mid-tier 2000 false 7d
critical-pods 1000000 true 30d
Exclude system-defined classes like system-* and the default global one (e.g., critical-pods).
Let's assume the highest user-defined value is 2000.
So your new class should be:
* Value = 1999
3## Create the high-priority PriorityClass
Create a file called high-priority.yaml:
cat <<EOF > high-priority.yaml
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
name: high-priority
value: 1999
globalDefault: false
description: "High priority class for user workloads"
EOF
Apply it:
kubectl apply -f high-priority.yaml
4## Patch the busybox-logger deployment
Now patch the existing Deployment in the priority namespace:
kubectl patch deployment busybox-logger -n priority \
--type='merge' \
-p '{"spec": {"template": {"spec": {"priorityClassName": "high-priority"}}}}'
5## Verify your work
Confirm the patch was applied:
kubectl get deployment busybox-logger -n priority -o jsonpath='{.spec.template.spec.priorityClassName}'
# You should see:
high-priority
Also, confirm the class exists:
kubectl get priorityclass high-priority
Final Command Summary
ssh cka000049
kubectl get priorityclass
# Create the new PriorityClass
cat <<EOF > high-priority.yaml
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
name: high-priority
value: 1999
globalDefault: false
description: "High priority class for user workloads"
EOF
kubectl apply -f high-priority.yaml
# Patch the deployment
kubectl patch deployment busybox-logger -n priority \
--type='merge' \
-p '{"spec": {"template": {"spec": {"priorityClassName": "high-priority"}}}}'
# Verify
kubectl get deployment busybox-logger -n priority -o jsonpath='{.spec.template.spec.priorityClassName}' kubectl get priorityclass high-priority
NEW QUESTION # 65
......
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