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?

141

What are the main key structures of hbase?

167

What is the use of hbase hmaster?

149

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

173

Explain what is wal and hlog in hbase?

312

How many operational commands in hbase?

167

why use hcolumndescriptor class?

153

What is the row key?

157

Tell me about the types of hbase operations?

175

How does hbase actually delete a row?

192

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

184

Explain why to use hbase?

157

Mention the difference between hbase and relational database?

162

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

223

Mention what are the key components of hbase?

177

Un-Answered Questions { Big Data }

What is Combiner in Hadoop?

534

Why is Kafka technology significant to use?

511

What are the common faults of the developer while using Apache Spark?

287

What is the use of recordreader in hadoop?

419

In which language Cassandra is written?

How many Reducers run for a MapReduce job?

689

What is the sequence of execution of map, reduce, recordreader, split, combiner, partitioner?

700

How should 'load' keyword is useful in pig scripts?

532

How does cassandra perform read operation? Explain

Explain the tajo architecture?

What are the stable versions of Hadoop?

1017

Explain the default level of parallelism in Apache Spark

312

Is hadoop still in demand?

447

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

223

How does apache spark work?

297

For More Un-Answered { Big Data } Questions Click Here