Capgemini Hadoop Interview Questions
- What is speculative execution in Hadoop?
- What is view? At first, we have created a view on top of the table (two rows- empid, empname). Then added 100 Rows on the table whether the newly added rows will see in view.
- How big data problems are solved in retail sector?
- At first, we have created a view on top of the table (two rows empid, empname). Then again added a third row (i.e. address ). Whether can we see the newly added row in the view?
- What is the largest amount of data that you have handled?
- What is Flume? Do you have any knowledge on Flume?
- A Table has two rows (emp_name and emp_salary). How to get the Max salary without using the Max keyword or without using UDFs?
- What is the purpose of using the Hadoop in your project?
- What is Hive Partition and have you used hive partition?
- Without inserting or without loading the data to the hive is it possible to load the data to hive?
- In HDFS the data will store why again we need to load the data to HIVE?
- How to write a UDF in Hive?
- Replace a certain word from a file using Unix
- How you can join two big tables in Hive?
- How to remove the duplicate records from a hive table?
