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 the command to change the replication factor ?

555

What is JobTracker?

484

How many datanodes can run on a single Hadoop cluster?

497

What are some typical functions of Job Tracker?

489

What is TaskTracker?

528

Give a brief overview of Hadoop history?

472

How Big is ‘Big Data’?

467

How can you set an arbitrary number of mappers to be created for a job in Hadoop?

511

How many job tracker processes can run on a single Hadoop cluster?

526

What are some of the characteristics of Hadoop framework?

497

Where are Hadoop’s configuration files located?

555

Can you give a detailed overview about the Big Data being generated by Facebook?

493

How to remove safemode of namenode forcefully in HDFS?

Who divides the file into Block while storing inside hdfs in hadoop?

What are file permissions in HDFS? how does HDFS check permissions for files/directory?

Un-Answered Questions { Big Data }

How sparksql is different from hql and sql?

513

How data or file is written into HDFS?

Where can the metastore database be hosted?

What is the use of checkpoints in spark?

326

Define ttl in hbase?

168

What are the filters are available in apache hbase?

157

What are spark jobs?

312

Is there any difference between FileSink and FileRollSink?

Does Cassandra works on Windows?

Explain Sort Order in brief?

164

explain the use of blinkdb?

317

How can we have to see all the clusters that are available in ambari?

what is difference between pig and sql?

2664

Is spark written in scala?

313

Explain the features of pseudo mode?

756

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