Certified Kubernetes Administrator CKA

The CKA Certification focuses on the skills required to be a successful Kubernetes Administrator in industry today.The CKA Certification exam includes these general domains and their weights on the exam:Application Lifecycle Management – 8% Installation, Configuration & Validation – 12% Core Concepts – 19% Networking – 11% Scheduling – 5% Security – 12% Cluster Maintenance…

Hyperledger Fabric Private Data Tutorial

Hyperledger Fabric What is Hyperledger Fabric? In layman’s terms, it is a framework Blockchain implementation of a permissioned network, tailored made for enterprises. So…what is Blockchain and what do you mean by permissioned? Basically, in a very general sense, a Blockchain is a distributed (everyone in the network has the same information) and decentralized (no …

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Best Practices for Writing Smart Contracts

Best Practices for Writing Smart Contracts Without a doubt, the invention of blockchain technology in 2008 has blown open a world of possibilities. One of such possibilities is the smart contract. Smart contracts are basically computer protocols, which are intended to facilitate, verify, or enforce the negotiation or performance of a contract. An upgrade to …

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Kubernetes Tutorials For Beginners Getting Started Guides Resoruces

Written By devopscube | Last Updated On May 30, 2019Official kubernetes (k8s) website says,Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery. Kubernetes builds upon 15 years of experience of running production workloads at Google, combined…

How Does a Blockchain Prevent Double-Spending of Bitcoins?

The bitcoin white paper, published in 2008, introduced the world to the first working peer-to-peer electronic cash system. The document’s pseudonymous author, Satoshi Nakamoto, delivered the first bitcoin client via SourceForge in 2009 and bitcoin was born. At the heart of bitcoin’s success was its ability to solve the problem of double-spending that had plagued …

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How ElasticSearch Works (Basic Concepts)

Table of Contents Basic components Index Document  (the core data containing unit) Shard (so-called Primary Shard) Replica Shard The good of having more replica shards The bad of having more replica shards Index Mapping (Index Schema) Useful resources I’m going to skip the intro about Elasticsearch and it’s primary application (which is for search) and …

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Kubernetes Tutorial

PrefaceIn this article, you will learn about Kubernetes and develop and deploy a sample application. To avoid being repetitive and to avoid conflicting with other resources, instead of addressing theoretical topics first, this article will focus on showing you what you need to do to deploy your first application on a Kubernetes cluster. The article…

Blockchain Explained – Intro – Beginners Guide to Blockchain

The content of this page was updated in July 2019, with an excerpt from the book Token Economy by Shermin Voshmgir. Blockchain builds on the idea of P2P networks and provides a universal data set that every actor can trust, even though they might not know or trust each other. It provides a shared and trusted ledger …

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