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 reduce side join in mapreduce?

615

What do you mean by inputformat?

612

What are the various configuration parameters required to run a mapreduce job?

660

What is a distributed cache in mapreduce framework?

607

What do you mean by data locality?

673

How can we assure that the values regarding a particular key goes to the same reducer?

607

What is pig statistics?

527

List the relational operators in pig.

629

What are all stats classes in the java api package available?

558

List the diagnostic operators in pig.

588

Why do we need indexing?

713

What will happen in case you have not issued the command: ‘set hive.enforce.bucketing=true;’ before bucketing a table in hive in apache hive 0.x or 1.x?

773

What is hbase fsck?

214

What are different tombstone markers in hbase?

154

What is the use of get() method?

153

Un-Answered Questions { Big Data }

What are 'slaves' and 'masters' in Hadoop?

419

What is apache ambari?

112

What does rdd stand for in logistics?

315

Is hadoop obsolete?

633

What is the difference between Apache Pig and Hive?

607

What is vectorized query execution?

315

How is a keyspace created in cassandra?

124

Difference Between Apache Sqoop vs Flume?

What are the types of Transformation in Spark RDD Operations?

286

What are the different levels of persistence in Spark?

336

Explain REPEAT function in Hive with example?

804

Name some companies that use Hadoop?

955

Why do we need Hadoop?

520

What are Prerequisites to learn Avro?

What is a "Spark Driver"?

338

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