Skip to main content

Posts

Story Blockchain logic how nodes to confirm transaction

Blockchain is a decentralised technology or distributed ledger on which transactions are anonymously recorded. This means the transaction ledger is maintained simultaneously across a network of unrelated computers or servers called “nodes”, like a spreadsheet that is duplicated thousands of times across a network of computers.

The ledger contains a continuous and complete record (the “chain”) of all transactions performed which are grouped into blocks: a block is only added to the chain if the nodes, which are members in the blockchain network with high levels of computing power, reach consensus on the next ‘valid’ block to be added to the chain. A transaction can only be verified and form part of a candidate block if all the nodes on the network confirm that the transaction is valid.


Recent posts

Hadoop use in the area Engg college development

This is based on my research of developing an engineering college using data analytics. This is a great subject that can be applied all engineering aspirants in their final project.

In my view it has dual benefits. The one is for student they can gain lot of analytics knowledge and application to develop engineering college to keep it in the list of top colleges.

The second is for Engineering colleges they can benefit to improve quality education and to become one of the top colleges.
The project theme is data analytics:

There are total 2 parts:
Use Hadoop technologies to study student database what they did in School level- This gives lot of insights on the Student interests. Approach each student and get some innovative ideas to improve the collegeUse Faculty database to get the skills and projects what they did in previous years. This helps to get right faculty for new innovative project Basically the qualities of good engineering college you can be classified based on the below cri…

2 top AWS recently discussed interview Questions

I have asked some of my friends who are attending interviews. They told me these questions asked. Out of those today I am giving two questions here.

AWS one of the most popular skill in the area of Cloud computing.


What are the components involved in AWS?There are 4 components involved and are as below.Amazon S3: with this, one can retrieve the key information which are occupied in creating cloud structural design and amount of produced information also can be stored in this component that is the consequence of the key specified.Amazon EC2: helpful to run a large distributed system on the Hadoop cluster. Automatic parallelization and job scheduling can be achieved by this component.Amazon SQS: this component acts as a mediator between different controllers. Also worn for cushioning requirements those are obtained by the manager of Amazon.Amazon SimpleDB: helps in storing the transitional position log and the errands executed by the consumers.What are the various layers in AWS?CC- Clus…

Amazon Web services Daily career tips subscribe today

You will receive daily tips to your email id. They are suitable to all application developers and working professionals in Amazon web services. These are from theory to practical and other relevant tips to find suitable jobs. You can subscribe here.
You will receive tips on the following points. Get ready and share it to your friends also. Tips about AWSWhat the developers will do , if they selected for AWS jobsWhat type of roles available in AWSInterview tips on AWSBest training on AWSAlso Read: Top 8 AWS basic Questions and answers5 Key modules you need to learn in AWS

IT skills digital demand and popular areas to re-skill

The popular IT skills you need for digital age are — ML(Machine Learning), AR (Augumeneted reality), VR (Virtual reality), AI (Artificial intelligence) and IoT. That's machine learning, augmented reality, virtual reality, artificial intelligence, and Internet of Things.

Ramanujan who has been at TCS for 26 years has himself re-skilled several times — from COBOL to client-server to ERP to cloud, before moving into more stable managerial roles. But the reskilling he's witnessing now is like none he's seen before. 

Source: economictimes.indiatimes.com

The Sqoop in Hadoop story to process structural data

Why Sqoop you need while working on Hadoop-The Sqoop and its primary reason is to import data from structural data sources such as Oracle/DB2 into HDFS(also called Hadoop file system).
To our readers, I have collected a good video from Edureka which helps you to understand the functionality of Sqoop.

The comparison between Sqoop and Flume

The Sqoop the word came from SQL+Hadoop Sqoop word came from SQL+HADOOP=SQOOP. And Sqoop is a data transfer tool. The main use of Sqoop is to import and export the large amount of data from RDBMS to HDFS and vice versa. List of basic Sqoop commands Codegen- It helps to generate code to interact with database records.Create-hive-table- It helps to Import a table definition into a hiveEval- It helps to evaluateSQL statement and display the resultsExport-It helps to export an HDFS directory into a database tableHelp- It helps to list the available commandsImport- It helps to import a table from a database to HDFSImport-all-tables- It helps to import tables …

Four Tableau products a quick review and explanation

I want to share you what are the Products most popular.

Total four products. Read the details below.

Tableau desktop-(Business analytics anyone can use) - Tableau  Desktop  is  based  on  breakthrough technology  from  Stanford  University  that  lets  you drag & drop to analyze data. You can connect to  data in a few clicks, then visualize and create interactive dashboards with a few more.

We’ve done years of research to build a system that supports people’s natural  ability  to  think visually. Shift fluidly between views, following your natural train of thought. You’re not stuck in wizards or bogged down writing scripts. You just create beautiful, rich data visualizations.  It's so easy to use that any Excel user can learn it. Get more results for less effort. And it’s 10 –100x faster than existing solutions.

Tableau server
Tableau  Server  is  a  business  intelligence  application  that  provides  browser-based  analytics anyone can use. It’s a rapid-fire alternative to th…