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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain deletion in hbase? Mention what are the three types of tombstone markers in hbase?

137

What are the main key structures of hbase?

162

What is the use of hbase hmaster?

141

Which technique can you use in hbase to access hfile directly without the help of hbase?

169

Explain what is wal and hlog in hbase?

297

How many operational commands in hbase?

164

why use hcolumndescriptor class?

146

What is the row key?

153

Tell me about the types of hbase operations?

171

How does hbase actually delete a row?

188

Name the filter which accepts the page size as the parameter in hbase?

179

Explain why to use hbase?

154

Mention the difference between hbase and relational database?

157

Mention what are the three types of tombstone markers in hbase?

219

Mention what are the key components of hbase?

165

Un-Answered Questions { Big Data }

What are components of Cassandra Data Model?

Explain SHOW and DESCRIBE Commands in Hive?

707

How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?

644

What are the benefits of apache kafka over the traditional technique?

962

The difference between GROUP and COGROUP operators in Pig?

529

What is distributed copy (distcp)?

434

What happens when you submit spark job?

245

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

1012

What is a DStream?

313

Do streamers make money from sparks?

260

Can you explain apache ambari?

Can you explain edge nodes in hadoop?

401

Why Avro?

What is the job of blend () and repartition () in Map Reduce?

595

What is the role of data transfer API in HCatalog?

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