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?

106

What are the different compaction types in hbase?

129

What is compaction in hbase?

126

What is hotspotting in hbase?

125

What is ttl (time to live) in hbase?

125

What is the difference between hbase and hadoop/hdfs?

118

When should you use hbase?

141

What is wal and hlog in hbase?

186

What is a cell in hbase?

105

What are the different types of filaters used in hbase?

129

How to create hadoop archive?

244

When should be hadoop archive create?

244

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

248

How often do you need to reformat the namenode?

259

What is the role of the namenode?

239

Un-Answered Questions { Big Data }

Explain the term memtable?

Does impala use caching?

What is the use of get() method?

102

What is the way of creating Avro Schemas?

Why HDFS?

How to restart NameNode or all the daemons in Hadoop HDFS?

Explain how cassandra delete data?

Explain about the common workflow of a Spark program?

177

What is azure spark?

214

Which command is used to list all the tables in a database or list all the columns in a table?

What is troubleshooting for impala?

What is the difference between Apache Hadoop and RDBMS?

436

What is Balancer in Hadoop?

216

On which port does ssh work?

397

What is the full form of fsck?

406

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