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

Big Data Interview Questions

Questions Answers Views Company eMail

Why hbase is a schema-less database?

184

What is the use of ycsb?

173

what are the key components of hbase?

173

name few other popular column oriented databases like hbase.

203

What is hfile ?

291

Is hbase an os independent approach?

189

How can you make sure of logical grouping of cells in the hbase?

203

Mention how many operational commands in hbase?

290

What is the role of zookeeper in hbase?

185

When should you use a reducer?

636

Can you tell us how many daemon processes run on a hadoop system?

595

Difference between mapreduce and spark

692

What is identity mapper and identity reducer?

645

What is heartbeat in hdfs? Explain.

684

What is identity mapper and chain mapper?

673

Un-Answered Questions { Big Data }

Does google use hadoop?

679

What are the functionalities of jobtracker?

675

Why is Spark RDD immutable?

370

What are the DDL commands used in hbase?

154

Why was spark created?

273

Define various running modes of apache spark?

282

What are the features of Spark?

291

Why we use BloomMapFile?

605

Before deploying the hadoop instance, what are the checks that an individual should do?

What is hdfs spark?

287

What is identity mapper and chain mapper?

673

What is the difference between Hadoop and RDBMS?

637

Compare apache pig and sql?

574

Explain Drop View Statement along with syntax?

Define lzo?

198

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