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

Big Data Interview Questions

Questions Answers Views Company eMail

How to open a connection in hbase?

153

What are the different compaction types in hbase?

171

What is compaction in hbase?

171

What is hotspotting in hbase?

177

What is ttl (time to live) in hbase?

186

What is the difference between hbase and hadoop/hdfs?

169

When should you use hbase?

180

What is wal and hlog in hbase?

307

What is a cell in hbase?

179

What are the different types of filaters used in hbase?

179

How to create hadoop archive?

419

When should be hadoop archive create?

428

What mode(s) can hadoop code be run in?

459

How often do you need to reformat the namenode?

511

What is the role of the namenode?

451

Un-Answered Questions { Big Data }

What happens when two clients try to access the same file on HDFS?

185

State some command line options?

What are the types of tables in Hive?

734

Explain the Features of HBase?

212

Use of export command in hadoop sqoop?

Which are the three modes in which hadoop can be run?

478

What are the cases where Apache Spark surpasses Hadoop?

283

What are some alternatives to apache kafka?

561

What are the languages supported by apache spark?

284

What is hadoop technology?

310

Why we use intwritable instead of int? Why we use longwritable instead of long?

483

What are the types of transformation in RDD in Apache Spark?

320

What is SerDe in Apache Hive ?

927

Wherever (Different Directory) I run hive query, it creates new metastore_db, please explain the reason for it?

663

How to use Hive using the command line and Beeline?

943

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