What is spark databricks?
How to set which framework would be used to run mapreduce program?
How will you update the rows that are already exported?
How can you compare Hadoop and Spark in terms of ease of use?
What is the difference between spark and python?
Why ‘Reading‘ is done in parallel and ‘Writing‘ is not in HDFS?
Have you ever used counters in hadoop?
What do the master class and the output class do?
Explain what is jobtracker in hadoop? What are the actions followed by hadoop?
Explain JobConf in MapReduce.
What are the main methods of data transferring in hadoop sqoop?
What is network topology strategy?
Explain about the bloommapfile?
What is the difference between TextInputFormat and KeyValueInputFormat class?
What are barriers?