Now a day's data of a person in the wrong hands may ruin their life. So protecting the data with industries is also an important task. As the data is in the cloud, the encryption of data may decrease its performance. Due to this, most of the companies ignore their security to the end of the application. Can we secure our data without harming its performance?

Now a day's big data science is the easiest way for industries to collect their data in an organized manner with descriptive statistics. But big data is not 100% accurate and can't match data in different formats allowing the duplication of data and retarding the quality of data thereby. So how can we improve the quality of our data?

We have been using a relational database for years.  Can we use the data in this database for any new project? Can we access this database easily? How can we make the available data more efficient and analyze it faster than in the relational model? Can we use any other way to store our data?

Explain briefly the various types of blockchain architecture and its components. Mention which type is more efficient and useful in terms of usability?

Briefly explain the structure of a blockchain and the main components in it and also briefly explain how the blocks are connected in a blockchain?

Explain the working of blockchain in a clear and concise format stating the whole procedure in a series of steps which are in sequence.

Discuss the various attributes of blockchain technology, namely why it is so widely considered the future of data security and maintaining anonymity among users?

What is Blockchain and why is it used mostly in the present-day financial/banking sector, explain with a scenario either real or imaginary?

My personal computer started making a beeping noise this afternoon. The display wasn’t working, but the CPU was working fine with all the fans and lights functioning. What should I do?

Which laptop to buy Intel or Nvidia, as both of these are leading companies, it becomes difficult to choose?