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 table in hbase?

208

Which method is used to access HFile directly without using HBase?

226

Which type of data HBase can store?

159

How to delete the table with the HBase shell?

153

What services run after running hbase job?

172

What is the use of truncate command?

194

Explain MemStore?

182

What is the best practice on deciding the number of column families for HBase table?

173

Which command do we use to run HBase Shell?

199

Define compaction in HBase?

168

Difference between hbase and rdbms?

181

What do you understand by compaction?

160

Does HBase support SQL like syntax?

157

What is the use of tools command?

206

Which command do we use to show the version?

164

Un-Answered Questions { Big Data }

Define Mem-table in Cassandra?

187

What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

714

What is the need for custom serde?

765

What is the meaning of speculative execution in Hadoop? Why is it important?

1092

Who are ‘Data Scientists’?

462

What are the features of kafka?

587

How to Delete directory and files recursively from HDFS?

What is hector?

Where is spark used?

382

How to start and stop spark in interactive shell?

362

What is a DStream?

333

Discuss how you can use filters in apache hbase

166

What is pig latin statements?

552

What is Hadoop serialization?

749

What is executor memory in spark?

336

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