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12 DevOps principles read today

DevOps means a concept to bring Development team and operation team together. So that you can speed up the deployment process. Before you start learning the tools you need to understand core principles.
The useful DevOps Principles to know for your project and interviewsTo deliver rapidly without affecting qualityCommunication and Collaboration are the key ideas in DevOps conceptMultiple deploys are possible- if code in Development team automatedOnce you commit the repository, it tests the code automatically against the automated test scriptsIf Build is successfully passed, it installs automatically in Testing environment When infrastructure is automated, it installs automatically to other serversMinor changes takes place in isolation, that means , it creates separate server to deploy minor changesSpeed in Devops, organizations to better serve their customers and compete more effectively in the market.Quality and Security teams are part of DevOpsAutomating the process, much better pro…

The top AWS Basics for Software Engineers

What you can do with AWS?
  • Store public or private data. 
  • Host a static website.These websites use client-side technologies (such as HTML, CSS, and JavaScript) to display content that doesn't change frequently. A static website doesn't require server-side technologies (such as PHP and ASP.NET). 
  • Host a dynamic website, or web app. These websites include classic three-tier applications, with web, application, and database tiers. 
  • Support students or online training programs. 
  • Process business and scientific data. 
  • Handle peak loads.
AWS (Amazon Web services different features)?

AWS Management Console A web interface. To get started, see the Getting Started with the AWS Management Console. AWS Command Line Interface (AWS CLI) Commands for a broad set of AWS products.To get started, see AWS Command Line Interface User Guide. Command Line Tools Commands for individual AWS products. For more information, see Command Line Tools. AWS Software Development Kits (SDK) APIs that are specific to your programming language or platform. For more information, see SDKs.
AWS Basics for Software Engineers
#AWS Basics for Software Engineers:

Query APIs Low-level APIs that you access using HTTP requests. For more information, see the API documentation for each service. 


Global Security Features in AWS?
  • Physical access to AWS data centers is strictly controlled, monitored, and audited. 
  • Access to the AWS network is strictly controlled, monitored, and audited. 
  • You can manage the security credentials that enable users to access your AWS account using AWS Identity and Access Management (IAM).You can create fine-grained permissions to AWS resources and apply them to users or groups of users. 
  • You can apply ACL-type permissions on your data and can also use encryption of data at rest. 
  • You can set up a virtual private cloud (VPC), which is a virtual network that is logically isolated from other virtual networks in the AWS cloud.You can control whether the network is directly routable to the Internet. 
  • You control and configure the operating system on your virtual server. 
  • You can set up a security group, which acts as a virtual firewall to control the inbound and outbound traffic for your virtual servers. 
  • You can specify a key pair when you launch your virtual server, which is used to encrypt your login information. When you log in to your virtual server, you must present the private key of the key pair to decrypt the login information.

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Hyperledger Fabric Real Interview Questions Read Today

I am practicing Hyperledger. This is one of the top listed blockchains. This architecture follows R3 Corda specifications. Sharing the interview questions with you that I have prepared for my interview.

Though Ethereum leads in the real-time applications. The latest Hyperledger version is now ready for production applications. It has now become stable for production applications.
The Hyperledger now backed by IBM. But, it is still an open source. These interview questions help you to read quickly. The below set of interview questions help you like a tutorial on Hyperledger fabric. Hyperledger Fabric Interview Questions1). What are Nodes?
In Hyperledger the communication entities are called Nodes.

2). What are the three different types of Nodes?
- Client Node
- Peer Node
- Order Node
The Client node initiates transactions. The peer node commits the transaction. The order node guarantees the delivery.

3). What is Channel?
A channel in Hyperledger is the subnet of the main blockchain. You c…