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 happens to a namenode, when job tracker is down?

752

What does the command mapred.job.tracker do?

777

How to come out of the insert mode?

787

What is the full form of fsck?

702

Why do we need a password-less ssh in fully distributed environment?

709

Can you give us some more details about ssh communication between masters and the slaves?

703

Can you tell us more about ssh?

716

What is shark?

284

Name a few commonly used spark ecosystems?

286

What is hive on spark?

389

Can we do real-time processing using spark sql?

310

How sparksql is different from hql and sql?

501

What is a parquet file?

284

How to split single hdfs block into partitions rdd?

How does data transfer happen from hdfs to hive?

148

Un-Answered Questions { Big Data }

What are the different components of Cassandra?

107

What combiners are and when you should utilize a combiner in a map reduce job?

604

What is driver and executor in spark?

313

What is a dataframe spark?

248

How tables are managed in apache tajo?

What is the maximum size of a message that can be received by the kafka?

553

Can you explain speculative execution?

418

State about ZooKeeper WebUI?

If map reduce is inferior to spark then is there any benefit of learning it?

281

Is dataframe immutable?

482

How do you stop a spark?

281

How can a user get the information on the version of CQLSH?

What are the possible Job roles?

Difference between HBase vs Hive?

723

Is spark better than hadoop?

313

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