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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. Why You Need BlockchainBlockchain 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 BlockchainThe ledger details distributed.Distributed data available to all parties, and no one can tamper this data. Every transaction is Public. That means only people who have access can see the information. Stores all records permanently.No one can edit or manipulate the dataThe possibility is there to hack a centralized database. In Blockchain one cannot hack the data. S…
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Testing in DevOps to maximize Quality

Testing is the critical phase in DevOps. The process of DevOps is to speed up the deployment process. That means there are no shortcuts in testing. Covering most relevant test cases is the main thing the tester has to focus.
Requirements to Maximize QualityGood maintainable codeExhaustive coverage of casesTraining documents to Operations teamFewer bugs in the bug trackerLess complex and no redundant code Testing Activities in DevOpsThe team to use Tools to check the quality of codeStyle checker helps to correct code styleGood design avoids bugs in productionCode performance depends on the code-qualityBugs in production say poor testing  Tester Roles in DevOpsGood quality means zero bugs in production.Design requirements a base to validate testing results.Automated test scripts give quick feedback on the quality of code. Right test cases cover all the functional changes. The Bottom LineThe DevOps approach is seamless integration between Development and Operations without compromi…

Topologies in Apache Storm the concept you need to know

There are two main reasons why Apache Storm is so popular. The number one is it can connect to many sources. The number two is scalable. The other advantage is fault tolerant. That means, guaranteed data processing. The map-reduce jobs process the data analytics in Hadoop. The topology in Storm is the real data processor. The co-ordination between Nimbus and Supervisor carried by Zookeeper Topologies in Apache StormThe jobs in Hadoop are similar to topology. The jobs run as per schedule defined.In Storm, the topology runs forever.A topology consists of many worker processes spread across many machines. A topology is a pre-defined design to get end product using your data.A topology comprises of 2 parts. These are Spout and bolts.The Spout is a funnel for topology Two nodes in StormMaster Node: similar to Hadoop job tracker. It runs on a daemon called Nimbus.Worker Node: It runs on a daemon called Supervisor. The Supervisor listens to the work assigned to each machine.Master NodeNimbus…

Useful 10 tricky Apache Storm interview questions To Read Now

The storm is a real-time computation system. It is a flagship software from Apache foundation. Has the capability to process in-stream data. You can integrate traditional databases easily in the Storm. The tricky and highly useful interview questions given in this post for your quick reference.
Bench mark for Storm is a million tuples processed per second per node. Tricky Interview Questions1) Real uses of Storm?

A) You can use in real-time analytics, online machine learning, continuous computation, distributed RPC, ETL

2) What are different available layers on Storm?
FluxSQLStreams APITrident3)  The real use of SQL API on top of Storm?
A) You can run SQL queries on stream data
4) Most popular integrations to Storm? HDFSCassandraJDBCHIVEHBase 5) What are different possible Containers integration with Storm? YARNDOCKERMESOS6) What is Local Mode?

A) Running topologies in the Local server we can say as Local Mode.

7) Where all the Events Stored in Storm?
A) Event Logger mechanism saves all eve…

Blockchain Smart contract behind mechanism you need to learn quickly

The smart contract in Blockchain is a kind of software application that works without human intervention based on the transaction logs and provide a solution to the user request. I want to share the back end mechanism in Smart Contract of Blockchain. Smart Contract Mechanism What is Smart ContractA smart contract is a protocol which can auto execute, facilitate, verify or enforce the negotiation of a contract.Agreement between two parties you can say as a contract.Incorporating the rules of physical contract into computing world, you can say as smart contractBlockchain supports you to create smart contracts.Smart Contracts are self-executing programs which run on the blockchain and are capable of enforcing rulesUsing Blockchain as platform and making an agreement or contract between more than two parties, you can say as Smart Contract.Traditional Markets  4 Top Benefits of Smart ContractCurrently smart contracts are being used only in Crypto CurrenciesNow Smart Contracts being used in …

Python Matrix Vs COBOL Arrays You Need to Know Logic Differences

Your most looking information where Python matrix and COBOL arrays differ, in this post, I am giving complete information. The Logic is different in both the languages. The way of definition and accessing element in an array or matrix is different.

Python Matrix Vs COBOL Array. In reality both Array and Matrix are the sameWhat are Arrays Arrays are storing data structure to store data in one or more dimensional form. You can access the data for further processing in your application program.
One Dimensional Array In general, one dimensional array is a row of elements either numeric or Strings separated by commas. Here, each element is separated by comma. This is key concept.

>>> a = ['Srini',25,33,42]Two Dimensional Arrays In the case of Two dimensional array data stored in Tabular form and you can access whichever tuple you want.

Real use of multi dimensional array is to give input in Tabular form and can access particular tuple as you want.

>>> b = [['Sr…

10 complex UX interview questions to read now really nice to get job

Read these 10 top interview questions on UX design. To attend for an interview these list of questions are highly useful. The term UX we call it as User Experience Design.
What are the complex interview questions?
In my understanding, a complex means unable to tell correct answers. These questions will help you get a positive response from your interviewer. Quiz questions most of the times help you get quick refresh of your subject.
1# Complex interview Questions
1) What is UX and what to ensure?
A). Good UX can ensure that customers use and actually enjoy the experiences you design. If you've ever used a website, software application, or product interface that confused you, you've probably experienced a design process that did not leverage UX best practices. In addition, UX can be a key component in establishing customer loyalty and goodwill.

2) What are the top 3 promises of good UX design?
A). The three promises are a) Usable, b) Useful and c) Desirable
3) What are the four …