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?

184

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 are Actions?

318

Why do I have to use refresh and invalidate metadata, what do they do?

When should you not use Cassandra? OR When to use RDBMS instead of Cassandra?

128

What is shuffleing in mapreduce?

648

What is big data concept?

526

Define a metadata?

652

How can you store the data in spark?

322

Define Partitions?

319

How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?

710

What is presto?

Why lazy evaluation is good in spark?

289

What is a yaml file in cassandra?

What are use cases of Apache Flume?

Can multiple clients write into a Hadoop HDFS file concurrently?

What is SequenceFileInputFormat?

817

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