SDN x Cloud Native Taiwan User Group Meetup#2 - 20180210

1. How to Prepare for
CKA Exam?
Alfie Chen 2018/02/10

2. Solution Architect @ inwinSTACK
Host of Train.IO
(https://www.youtube.com/c/inwinSTACK)
Alfie Chen
alfie.c@inwinstack.com
alfieYFC
alfie.yfc

3. Why CKA?
• Required for KCSP
• Proof of intermediate K8Ser
• Separate milestone from CKAD

4. Things to Know Prior…
• Offered by CNCF
• $300 (1 free retake within a year)
• Online-base with a proctor
• Reservation 1~3 days prior exam
• Command line ONLY
• Currently v1.9.1
• 3~4hrs (request breaks to proctor)
• Run the Compatibility Check!!
https://www.examslocal.com/ScheduleExam/Home/CompatibilityCheck

5. Exam Requirements
• Chrome browser
• Reliable internet access
• Webcam
• Microphone
• Empty room
• Clean surface
• No food & drinks (including water)

6. Exam Panel
Terminal >
Content Panel
• Instructions
• Problem Statement
• Problem Navigation
• Hints/Tips
Toolbar/Menu (Chat, Notebook, etc.)

7. Exam Panel
Terminal >
Content Panel
• Instructions
• Problem Statement
• Problem Navigation
• Hints/Tips
Toolbar/Menu (Chat, Notebook, etc.)
Notebook Pop-up

8. Exam Curriculum
• 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%
https://github.com/cncf/curriculum/blob
/master/certified_kubernetes_administra
tor_exam_v1.9.0.pdf

9. K8S Clusters in Exam (back when I took CKA v1.6)
Cluster Name Members Description
k8s 1 etcd, 1 master, 2 worker
Hk8s 3 etcd, 3 master, 1 load-balancer, 2 worker HA K8S Cluster
bk8s 1 etcd, 1 master, 1 worker
wk8s 1 etcd, 1 master, 2 worker
ek8s 1 etcd, 1 master, 2 worker
fk8s 1 etcd, 1 machine Non-Cluster
ik8s 1 etcd, 1 master, 1 machine Missing worker
tk8s 1 etcd, 1 master, 1 node
kubectl config use-context <cluster-name>

10. K8S Clusters in Exam
Cluster Name Members Description
k8s 1 etcd, 1 master, 2 worker
hk8s 1 etcd, 1 master, 2 worker calico
bk8s 1 etcd, 1 master, 1 worker
wk8s 1 etcd, 1 master, 2 worker
ek8s 1 etcd, 1 master, 2 worker
ik8s 1 etcd, 1 master, 1 machine Missing worker
kubectl config use-context <cluster-name>

11. What else should I know?
• Read the Manual!!!
https://www.cncf.io/certification/candidate-handbook

12. How to Prepare?
• Practice Linux CLI (Ubuntu 16)
• Practice kubectl commands
• Minikube (https://github.com/kubernetes/minikube)
• inwinstack/kube-ansible
(https://github.com/inwinstack/kube-ansible)
• Get familiar with kubernetes.io documentations
• Get familiar with kubernetes.io yaml examples
• Get familiar with kubernetes.io API references

13. How to Prepare?
• Get familiar with kubernetes.io documentations
(https://kubernetes.io/docs/home/?path=users&persona=app-
developer&level=foundational)

14. How to Prepare?
• Get familiar with kubernetes.io yaml examples
Here’s my advice:
DON’T JUST COPY&PASTE!!
Type your own and play
around with it.

15. How to Prepare?
• Get familiar with kubernetes.io API references
(https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.9/)
It’s ugly
It’s dirty
It’s really annoying
But we all desperately
need it…

16. How to Prepare?
Knowing K8S infrastructure is a PLUS+
• Kubernetes the Hard Way - Kelsey Hightower
https://github.com/kelseyhightower/kubernetes-the-hard-way
• Kubernetes v1.8.x – Kyle Bai
https://kairen.github.io/2017/10/27/kubernetes/deploy/manual-v1.8/

17. How to Prepare?
• Online course – Kubernetes Fundamentals
https://training.linuxfoundation.org/linux-courses/system-administration-
training/kubernetes-fundamentals
• Training courses from inwinSTACK (TBD)

18. FREE Learning Materials!
• Free online course – Introduction to Kubernetes
https://www.edx.org/course/introduction-kubernetes-linuxfoundationx-
lfs158x#!
• YouTube is full of free contents!
1. KubeCon + CloudNativeCon 2017 – Austin (CNCF)
2. TGI Kubernetes (Heptio)
3. Kubernetes Webinar (Janakiram & Associates)
4. Train.IO (inwinSTACK)

19. Register Today!!
CKA Exam
https://www.cncf.io/certification/expert/

20. www.inwinstack.com
Thank You!