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 flume and sqoop?

107

Why is flume used?

How does a log flume work?

What kind of music is flume?

How much does flume cost?

What is “serde” in “hive”?

706

Explain about the smb join in hive?

728

Compare hadoop & spark?

265

What are ‘reduces’?

713

Explain how do ‘map’ and ‘reduce’ work?

614

How do ‘map’ and ‘reduce’ work?

659

Explain the input type/format in mapreduce by default?

585

Can you explain the benefits of big data?

598

Explain the steps to be followed to deploy a big data solution?

506

Can you define fsck?

535

Un-Answered Questions { Big Data }

Is hadoop required for spark?

304

Difference Between Apache Sqoop vs Flume?

What is pseudo-distributed mode?

609

What are the different execution modes available in Pig?

554

Differentiate between FileSink and FileRollSink?

107

What is Flatten and what it do in PIG?

639

Is multiline comment supported in Hive Script ?

695

Explain what is a keyspace in Cassandra?

What is Secondary Index in Cassandra ?

Can you run spark on windows?

296

Differentiate between the various types of primary keys in cassandra.

How to change a number of mappers running on a slave in MapReduce?

791

What is the use of BloomMapFile?

685

Do we need scala for spark?

305

For using hadoop list the network requirements?

475

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