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?

575

What do you mean by inputformat?

578

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

624

What is a distributed cache in mapreduce framework?

581

What do you mean by data locality?

627

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

580

What is pig statistics?

499

List the relational operators in pig.

594

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

520

List the diagnostic operators in pig.

544

Why do we need indexing?

670

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?

727

What is hbase fsck?

210

What are different tombstone markers in hbase?

148

What is the use of get() method?

151

Un-Answered Questions { Big Data }

Is it possible to split 100 lines of input as a single split in MapReduce?

927

What is HBaseFsck class?

250

What is a pipelinedrdd?

416

How to start a kafka server?

566

What do you know about yarn?

384

Name some independent extensions that contribute to the Ambari codebase?

What is a bag in pig?

591

What happen if one of the datanodes has much slower cpu?

389

Whenever we run hive query, new metastore_db is created. Why?

656

explain the use of blinkdb?

276

What are the other components of Cassandra?

Are spark dataframes distributed?

300

How can you add a new partition for the month December in the above partitioned table?

640

How to use hdfs put command for data transfer from flume to hdfs?

What's rdd?

271

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