The document provides information about preparing for the Certified Kubernetes Administrator (CKA) exam. It includes: - An overview of the exam contents and scoring, with the largest sections being Core Concepts at 19% and Installation, Configuration & Validation at 12%. - Links to practice environments and sample exam questions to help prepare for the hands-on, lab-based format of the exam. - Tips for the exam, including enabling kubectl autocompletion, checking available clusters in the lab environment, and choosing questions strategically to pass the score threshold.

1. CKA
잘 준비하는 법
조훈 (Hoon Jo)
- CCIE DC, VCIX-NV6, CKA, RHCE, GCP-PCA
https://github.com/SysNet4Admin
https://app.vagrantup.com/SysNet4Admin

2. Books
Certifications
I am an Engineer
Kubernetes
(ETA: 2020.Oct)

3. 0. Intro CKA

4. 4
❑ Application Lifecycle Management 8%
❑ Installation, Configuration & Validation 12%
❑ Core Concepts 19%
❑ Networking 11%
❑ Scheduling 5%
❑ Security 12%
❑ Cluster Maintenance 11%
❑ Logging / Monitoring 5%
❑ Storage 7%
❑ Troubleshooting 10%
Certified Kubernetes Administrator (CKA)

5. 5
Testing Information
❑ 3 hours
❑ 24 questions
❑ Pass score is 74 or above
❑ Remotely proctored
❑ Chrome browser plus an extension
❑ Government-issued non-expired ID
❑ Webcam and microphone
Certified Kubernetes Administrator (CKA)

6. How about CKA?
❑100% Hands-on lab test.
❑Good to learn. So Highly practical.
❑Strict exam and scoring.
❑CNCF aim to expand k8s user.

7. 1. Exam Enviroment

8. https://github.com/arush-sal/cka-practice-environment

9. C:UsersHoon Jo - PinkDownloadscka-practice-environment-mastercka-practice-environment-masterlabfilesexam.html
[student486@m-k8s ~]#
7%
Q. Backup the etcd database
Backup the etcd database at
/opt/baks/etcd0001/
Copy = crtl + insert
Paste = shift + insert
Copy
Time remaining
OR Paste copied contents
with the right mouse button
apt install

10. Search!!!

11. 2. Exercise exam

12. CKA Lab Source (By vagrant)
https://github.com/sysnet4admin/IaC/tree/master/k8s-SingleMaster-1.13.1
https://github.com/sysnet4admin/IaC/tree/master/k8s-natvie-lab

13. ❑ Application Lifecycle Management 8%
❑ Installation, Configuration & Validation 12%
❑ Core Concepts 19%
❑ Networking 11%
❑ Scheduling 5%
❑ Security 12%
❑ Cluster Maintenance 11%
❑ Logging / Monitoring 5%
❑ Storage 7%
❑ Troubleshooting 10%
Certified Kubernetes Administrator (CKA)
Q. Create a busybox pod
Create a busybox pod with sleep 3600 command

14. ❑ Application Lifecycle Management 8%
❑ Installation, Configuration & Validation 12%
❑ Core Concepts 19%
❑ Networking 11%
❑ Scheduling 5%
❑ Security 12%
❑ Cluster Maintenance 11%
❑ Logging / Monitoring 5%
❑ Storage 7%
❑ Troubleshooting 10%
Certified Kubernetes Administrator (CKA)
Q: Fix the broken cluster

15. ❑ Application Lifecycle Management 8%
❑ Installation, Configuration & Validation 12%
❑ Core Concepts 19%
❑ Networking 11%
❑ Scheduling 5%
❑ Security 12%
❑ Cluster Maintenance 11%
❑ Logging / Monitoring 5%
❑ Storage 7%
❑ Troubleshooting 10%
Certified Kubernetes Administrator (CKA)
Q. Bootstrap a Kubernetes cluster using kubeadm
You need to bootstrap a Kubernetes cluster with one
master and one worker node using kubeadm.

16. 3. Hints & Tips

17. Enable
kubectl autocompletion

18. DO NOT need
to remember ALL.
Just let you know
where it is.

19. kubectl config current-context
- Many of clusters are in the lab env.

20. CKA Clusters
Cluster Members CNI Description
k8s 1 master, 2 worker flannel k8s cluster
hk8s 1 master, 2 worker calico k8s cluster
bk8s 1 master, 1 worker flannel k8s cluster
wk8s 1 master, 2 worker flannel k8s cluster
ek8s 1 master, 2 worker flannel k8s cluster
ik8s 1 master, 1 base node loopback k8s cluster − missing worker node
CKAD Clusters
Cluster Members CNI Description
k8s 1 master, 2 worker flannel k8s cluster
dk8s 1 master, 1 worker flannel k8s cluster
nk8s 1 master, 2 worker calico k8s cluster
sk8s 1 master, 1 worker flannel k8s cluster
https://docs.linuxfoundation.org/tc-docs/certification/tips-cka-and-ckad

21. Install TMUX
- session management tool.

22. Sudo –i
- Do not worry to use it.

23. Choose a question strategically
- High score is not very difficult

24. Check compatibility before exam
https://www.examslocal.com/ScheduleExam/Home/CompatibilityCheck

25. Don’t be afraid.
You have second chance
FREE RETAKE Once

26. Miscellaneous
1. Time will start since env-check finished.
2. Lab version is latest version.
3. Stay in CAM during the exam.
4. Prohibit any suspicious behaviors.
5. Logoff google account from Chrome
6. CKA Portal (https://bit.ly/2CyD2gf)

27. 27
Thanks!
Any questions?
( Give me Give me Question ! )
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