1626476580
My Experience With The CKA Exam
Last Monday 22 March I took the exam for the CKA certificate from the Linux Foundation, and I’m here to tell you about my experience of how I prepared for it and what to expect in the exam. I highly recommend that you also read a post from my colleague Fernando from a few months ago about the CKAD exam, which goes into much more detail about the aspects of these exams and helps you to pass them. I got some essential tips from reading his post!
Previous Experiences with Kubernetes
In all honesty, exactly a year ago I knew nothing about Kubernetes - it wasn’t because I had never worked with it, but that I wasn’t even clear about the concept of “container”. It’s true that this last year I’ve been working with this tool frequently (which undoubtedly helped me when preparing for the exam), but I think you need no more than a little previous experience.
How I Prepared for The Exam
Despite the knowledge I already had of K8s resources, using kubectl or managing clusters, we felt that it was necessary for me to sign up for this course on Udemy: link. It begins by explaining the most basic concepts of both administration and Kubernetes resources, which can help people with less experience, and in no time it begins to explain more advanced content.
However, in the exam, many questions are about the most basic content, so I personally recommend paying attention to these lessons as well. The course is made up of videos and practical labs and even has some exams at the end with questions very similar to the real exam.
#kubernetes #exams #cka
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1626476580
My Experience With The CKA Exam
Last Monday 22 March I took the exam for the CKA certificate from the Linux Foundation, and I’m here to tell you about my experience of how I prepared for it and what to expect in the exam. I highly recommend that you also read a post from my colleague Fernando from a few months ago about the CKAD exam, which goes into much more detail about the aspects of these exams and helps you to pass them. I got some essential tips from reading his post!
Previous Experiences with Kubernetes
In all honesty, exactly a year ago I knew nothing about Kubernetes - it wasn’t because I had never worked with it, but that I wasn’t even clear about the concept of “container”. It’s true that this last year I’ve been working with this tool frequently (which undoubtedly helped me when preparing for the exam), but I think you need no more than a little previous experience.
How I Prepared for The Exam
Despite the knowledge I already had of K8s resources, using kubectl or managing clusters, we felt that it was necessary for me to sign up for this course on Udemy: link. It begins by explaining the most basic concepts of both administration and Kubernetes resources, which can help people with less experience, and in no time it begins to explain more advanced content.
However, in the exam, many questions are about the most basic content, so I personally recommend paying attention to these lessons as well. The course is made up of videos and practical labs and even has some exams at the end with questions very similar to the real exam.
#kubernetes #exams #cka
1602262800
Implement etcd backup and restore — CKA Exam Preparation Series
This is one of the numerous posts by TechCommanders in a series for studying for the Certified Kubernetes Administrator (CKA) Exam.
Become a Certified Kubernetes Administrator (CKA)!
Etcd is a vital component of Kubernetes cluster. The Etcd nodes exchange the information through the Raft distributed consensus algorithm. For this tutorial we will be using Rancher’s RKE clusters and learn how we can back up etcd from one cluster and restore it to another. This concept will help you in scenarios like when your running cluster goes wrong due to any reason and you need to transfer it to a new one or the spare one.
So, before getting started with backup and restoration, let’s get a brief idea about Rancher’s RKE.
What is RKE?
It is a CNCF-certified Kubernetes distribution that runs entirely within docker containers. RKE is managed by a company named Rancher Labs. It is a management platform for Kubernetes which also gives us liability to manage many clusters within the same interface. It covers cluster provisioning, user access control, workload deployment, and many more things.
This is also well-known in an open-source environment and the binary file for the installation on different OS is available here. Once installed, we can list all the available commands in a terminal like this.
#cka #kubernetes #cka-training #kubernetes-cluster #ckad
1602248400
Learn how to Secure a Kubernetes Cluster — CKA Exam Preparation Series
This is one of the numerous posts by TechCommanders in a series for studying for the Certified Kubernetes Administrator (CKA) Exam.
Become a Certified Kubernetes Administrator (CKA)!
Before learning how to secure a Kubernetes Cluster. Let’s read about why it is important to secure a Kubernetes cluster. Last year, somewhere around January the world’s biggest orchestration system, experienced a major security vulnerability that hit the project ecosystem hard.
We won’t get much into the vulnerability but would like to provide you with an overview. Using this vulnerability attackers can compromise clusters using an API server. This allows them to execute malicious code and put in malware.
The other case that we had come across was because of the wrong configuration of the Kubernetes cluster which led to the installation of cryptocurrency mining software on tesla resources.
One attacker took the advantage of a non-protected Kubernetes Panel by which they were allowed to access the pods and make changes in a larger part of Tesla on AWS.
So, the organizations which are using this orchestration system or shifting to this should be aware of the best security practice to support customer data. Follow the following advice to protect your infrastructure.
#cka-training #kubernetes-cluster #kubernetes #cka #ckad
1614894960
How to pass CKA — Kubernetes Certified Administrator
TL;DR How to prepare for CKA certification exam.
Just passed the CKA — Kubernetes Certified Administrator certification exam in January 2020 with the new format and I’ll share my preparation with you. Follow this recipe and you will be ready to get your hands on CKA too!
Study material & strategy
- Get this course https://www.udemy.com/course/certified-kubernetes-administrator-with-practice-tests/ and go over all the videos at least once.
There are a lot of details so maybe you want to keep notes. If you don’t feel like taking notes, check my curated CKA Cheatsheet and study notes.
Complete successfully all the practice tests along with the mock exams at least 3 times.
- While doing the practice tests try to use only the official documentation to simulate the real exam. In the examination, you’re only allowed to have one other browser tab open with the Kubernetes documentation. These pages only:
That means for example you can’t access discuss.kubernetes.io. Pay attention to that and try to complete the practice tests and exams only with the allowed resources.
#cka-training #certification #kubernetes-certification #kubernetes #cka
1620904941
Best Practices to Enhance Your Mobile App User Experience!!
In terms of UX design, the use of proper visual elements is incredibly important. So, how can you implement great visual elements in accordance with the principles of good UX design? We at AppClues Infotech talk about that right here.
For more info:
Website: https://www.appcluesinfotech.com/
Email: info@appcluesinfotech.com
Call: +1-978-309-9910
#mobile app user experience #the elements of the mobile user experience #significance of ui/ux design in mobile apps #best practices to enhance your mobile app user experience #mobile app design best practices