Tell me something about Avro file format. What do you know about Avro files? These are the common question…
You may have come across questions like below during any of your spark interview. So to get full knowledge on…
Many of us might be thinking is really Java required for a Big Data/Spark/Data engineer interview? If yes, what all…
Similar and related questions: How do you cache dataset in Spark? How many ways to cache the data in Spark?…
How can you set number of reducers for Sqoop job? How many reducers did you use for your Sqoop job?…
What is a shared variable? A variable that is available on all of the executors or nodes that work on…
How to prepare resume for Bigdata interview? Spark interview includes lot of other bigdata technologies like Hadoop, Hive, Sqoop, Flume…
What is Hadoop? Hadoop is a framework that is used to process large data sets using a programming paradigm called…
I’m not sure how many of us use these two operations frequently in our projects, but these two operations are…