What kind of questions are expected in a Hadoop developer interview?

If you want to start your career in Big Data Hadoop, This is the good time to start your career in this booming technology. There are plenty of opportunities from many reputed companies in the world. So it is right time to start applying for jobs in this field.

As a Hadoop Developer, it is essential to know the right buzzwords, prepare the right answers to commonly asked Hadoop Interview Questions.

Here’s a list of some of the most common Hadoop interview question this will guarantee a breeze-through to the next level.

  1. What is Hadoop? Name the Main Components of a Hadoop Application.
  2. What are the concepts used in the Hadoop Framework?
  3. What do you know about YARN?
  4. How many Input Formats are there in Hadoop? Explain.
  5. State some of the important features of Hadoop.
  6. What is the RecordReader in Hadoop used for?
  7. Explain different methods of a Reducer.
  8. What is the use of “jps” command?
  9. How can you differentiate RDBMS and Hadoop?
  10. What do you know about active and passive NameNodes?
  11. Define “Checkpointing”. What is its benefit?
  12. What are the different schedulers available in Hadoop?
  13. What is the query to transfer data from Hive to HDFS?
  14. What are the common Hadoop shell commands used for Copy operation?
  15. Differentiate HDFS Block and Input Split.

So these are some Hadoop interview questions that will help you to crack Hadoop interview easily, if you want to know more questions and answers - Check out the list here and read more.

ALL THE BEST!!


Popular posts from this blog

Is Hadoop big data certification worth it?

            Today’s Job market, there is immense competition and if you don’t have any certification/ specialization to show in your resume then chances are you will not be considered for the job post that you have been aspiring to grab. We see, In the days to come, the demand for Hadoop Professionals will only increase. Companies can only achieve their further growth through new product improvements, by taking existing market share from competitors or through a rise in overall consumer demand. Thus, it is important that we talked about the essentials of this course and the advantages. Why Should You go for a Big Data/Hadoop Certification? To begin your  big data  career, it is more a necessity than an option to have a  Hadoop Certification  ... Earning a  Hadoop Certification  is a great way to finesse your  Hadoop  skills and break into the field of  big data . A certified Hadoop administrator can earn ...
Read more

Understanding Hadoop and its Importance - Complete Guide

Image
In the recent times, an increased demand for Hadoop has been seen around the world. Now a days, Data is everwhere which each and every organization in various domains are looking around to perform the best to their customers. Hadoop plays a major role to make their work easy by providing massive storage option, enormous processing power and more. Look at : Big Data Hadoop Latest Topics What is Hadoop? Hadoop is an open source software stack that runs on a cluster of machines. Hadoop provides distributed storage and distributed processing for very large data sets. Hadoop makes it possible to run applications on system with thousands of commodity hardware nodes. Its distributed file system has provision of rapid data transfer rates among nodes. It also allows the system to continue operating in case of node failure. Hadoop Framework mainly used by Facebook, Yahoo, Google, Twitter, LinkedIn and much more. Here are some fresh facts you must know about Hadoop: By 20...
Read more

What is big data? What are the job opportunities?

Image
“ With too little data, you won’t be able to make any conclusions that you trust. With loads of data you will find relationships that aren’t real… Big data isn’t about bits, it’s about talent.” – Douglas Merrill. In the Recent Survey report, Hadoop is the one of the  top trending technologies in 2018-2019 .  Also named as the most using  Open source framework. Big data  is helping to controlling, monitoring and evaluating a huge amount of data can over power for business that see the importance of making data-driven decisions. I have explained more about  Hadoop and its career path  in my blog posts, You can read about those with the links below, Understanding Hadoop and its Importance Top Amazing Facts about Big data Hadoop Career path of Hadoop Developer Big data Job Opportunities: You can check here the  Recent Job Opportunities.! Also, Find here the important   Hadoop Tools (FREE PDF)
Read more