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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…

11 Top Blockchain Key Advantages to Read Now

Blockchain architecture changes the financial world in near future. Increasing population and volume of transactions cause financial crimes. Opportunities to implement Blockchain technology are Banks, Share markets, Government Bodies, and Big Corporations.   
Less maintenance and distributable made blockchain hot in the market.
Blockchain top benefits or key advantages for financial world given in this article to refresh your knowledge. Explained the advantages and disadvantages. Read more.
Photo Credit: Srini

Why You Need Blockchain

  • Blockchain stores each transaction in Blocks. No one can tamper or change the details. 
  • The people who are making a transaction in Blockchain world they both have same copies. 
  • No possibility of changing these records by parties involved. So it is robust.

Key Advantages of Blockchain

  1. The ledger details distributed.
  2. Distributed data available to all parties, and no one can tamper this data. 
  3. Every transaction is Public. That means only people who have access can see the information. 
  4. Stores all records permanently.
  5. No one can edit or manipulate the data
  6. The possibility is there to hack a centralized database. In Blockchain one cannot hack the data. Since it is distributed.
  7. The centralized database is slow. Whereas Blockchain is much faster. Verification and completing a transaction is much faster.
  8. The centralized system is expensive. Each server in the network charges some amount as processing fee. In Blockchain, you can eliminate intermediaries.
  9.  The Centralized databases are expensive to carry transactions of low value. The fee to pay intermediaries is huge.
  10. Data in Blockchain cannot be edited. In the case of Centralized databases, the Banks or Private Organizations can edit it.
  11. Maintenance of Blockchain is cheaper.

Key Disadvantages of Blockchain

  • Publish carefully. Once publishes you cannot take back.

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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…