Skip to main content

Hadoop Interview Questions for you



1. What is Big Data?

Any data that cannot be stored into traditional RDBMS is termed as Big Data. As we know most of the data that we use today has been generated in the past 20 years. And this data is mostly unstructured or semi structured in nature. More than the volume of the data – it is the nature of the data that defines whether it is considered as Big Data or not.

2. What do the four V’s of Big Data denote?

The four V’s of Bigdata denote the Fallowing
 a) Volume –Scale of data
b) Velocity –Different forms of data
c) Variety –Analysis of streaming data
d) Veracity –Uncertainty of data

3.What is Hadoop ?

When “Big Data” emerged as a problem, Apache Hadoop evolved as a solution to it. Apache Hadoop is a framework which provides us various services or tools to store and process Big Data. It helps in analyzing Big Data and making business decisions out of it, which can’t be done efficiently and effectively using traditional systems.To Know more about hadoop enroll Hadoop Training in Chennai

4.What platform and Java version is required to run Hadoop?

Java 1.6.x or higher version are good for Hadoop, preferably from Sun. Linux and Windows are the supported operating system for Hadoop, but BSD, Mac OS/X and Solaris are more famous to work.

5. What kind of Hardware is best for Hadoop?

Hadoop can run on a dual processor/ dual core machines with 4-8 GB RAM using ECC memory. It depends on the workflow needs.

6 )What are the most commonly used Input Formats in Hadoop ?
  • ·         TextInputFormat
  • ·         KeyValueInputFormat
  • ·         SequenceFileInputFormat


7) ) Which one is default InputFormat in Hadoop ?
A) TextInputFormat
8)  What is Hive ?
A) Hive is a data warehouse software which is used for facilitates querying and managing large data sets residing in distributed storage.

Besant Technologies Offers best Hadoop Training in Chennai with best placement support. The training sessions are handled by working professionals who are experts in teaching Hadoop according to needs of IT companies. Besant Technologies designed syllabus in such a way it would help to clear the interviews and certifications easily so join us soon to build strong career in Hadoop















Comments

Post a Comment

Popular posts from this blog

Why Is Python So Famous?

Have you ever come across word the python anywhere? If no, let me brief you about “Python”. Python is an interpreted, object oriented and high level programming languages more over it has built in data structures which makes it attractive for rapid application development as well suitable for scripting language. The applications of python languages are wider it used to create GUI based desktop applications, web applications and business applications. So the opportunities for python are overwhelming, so grab the opportunity by enrolling Python Training in Chennai Advantages of python Python has numerous third party modules which make it capable for interacting with other language and platform Python is open source software which makes it free to use and distribute Python provides excellent readability which helps beginners to learn the language fastly Python offers user friendly data structures Python increases the speed of application developmen...
12 comments
Read more

Pros of Being in Android Industry.

Among Various Field in The IT industry. Android is emerging as most demand able and fast growing field. The android phone is becoming as an important need of people living in the competitive world. So it is predicted that the demand and use of android app will grow tremendously in next coming years Here are some of the benefits of being in android industry Constant Growth Android is an Stable industry and it seems to be growing consistently in recent years and the number of jobs in the IT industry have become doubled in recent days moreover there is never shortage of available jobs So it right time to enroll best Android Training in Chennai at Besant Technologies Improves Your Creativity The android sector is full of Creativity. This field is suitable for people who genuinely want to have their career interesting moreover when their products or services are complete, they can actually witness the result that their technological innovations have created being a...
4 comments
Read more

Shift your career using hadoop

Are you looking for job change in IT? Confused with choosing right domain? Hadoop is a solution for confusion. Many recruiters say “there is great demand hadoop in the market and companies are ready to pay high if you meet the expectations of the hadoop professionals” So it right time to make career in hadoop by enrolling hadoop training in chennai Why Companies use hadoop? Hadoop is considered to be cost effective tool for storing and managing the data Hadoop provides opportunity for accessing data which in turn helps to take proper decision Hadoop acts an enabler for social media, emailing, log processing, data warehousing and error detection. Hadoop is capable processing data at a faster rate In the real word the size of data is increasing rapidly, So Companies are in need of hadoop trained professionals which in turn creates large gap between demand and supply of the hadoop professionals. Hadoop is one of the highest paying skills in the market moreover ...
5 comments
Read more