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?

103

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”?

631

Explain about the smb join in hive?

658

Compare hadoop & spark?

247

What are ‘reduces’?

667

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

579

How do ‘map’ and ‘reduce’ work?

606

Explain the input type/format in mapreduce by default?

552

Can you explain the benefits of big data?

538

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

454

Can you define fsck?

480

Un-Answered Questions { Big Data }

What is spark used for?

247

What is memtable?

102

What is the use of cloudera?

401

What do you understand from Node redundancy and is it exist in hadoop cluster?

1190

What does rdd mean?

293

What are mapreduce new and old apis while writing map reduce program?. Explain how it works

586

What are the functions of presto?

Is hadoop obsolete?

591

What happens to existing data in my cluster when I add new nodes?

204

Do I need to install hadoop for spark?

256

How to setup the local repository manually?

Explain the uses of PIG?

956

How does Cassandra delete data?

Do I need to know hadoop to learn spark?

313

What is lazy evaluation in Spark?

301

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