Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is Sqoop Import? Explain its purpose?

What is the default file format to import data using Apache Sqoop?

How can I import large objects (BLOB and CLOB objects) in Apache Sqoop?

How can you execute a free-form SQL query in Sqoop to import the rows in a sequential manner?

Does Apache Sqoop have a default database?

How will you list all the columns of a table using Apache Sqoop?

Name a few import control commands. How can Sqoop handle large objects?

How can we import data from particular row or column? What is the destination types allowed in Sqoop import command?

When to use –target-dir and when to use –warehouse-dir while importing data?

What is the significance of using –compress-codec parameter?

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

What is the importance of eval tool?

How can you import only a subset of rows from a table?

What is the advantage of using –password-file rather than -P option while preventing the display of password in the sqoop import statement?

What do you mean by Free Form Import in Sqoop?

Un-Answered Questions { Big Data }

Is there a module to implement sql in spark?

299

What operations does the "RDD" support?

313

What is the use of having Filters in Apache Pig ?

746

How does a log flume work?

What is a cell in hbase?

190

How does bloom filter help in searching rows?

219

Does spark run hadoop?

316

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1057

When Namenode is down what happens to job tracker?

760

What is sparksession and sparkcontext?

283

What are the different components of a Hive architecture?

874

Is ambari python client can be used to make good use of ambari api’s?

Explain the difference between an inputsplit and a block?

469

What is the port number for NameNode

888

How hdfs is different from traditional file systems?

For More Un-Answered { Big Data } Questions Click Here