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 are the port numbers of namenode, job tracker and task tracker?

757

Is fs.mapr.working.dir a single directory?

718

How can we look for the namenode in the browser?

756

What do slaves consist of?

716

How can we check whether namenode is working or not?

704

What happens to job tracker when namenode is down?

722

How can I restart namenode?

762

What do masters consist of?

727

What if a namenode has no data?

714

Which are the three main hdfs-site.xml properties?

709

What is formatting of the dfs?

873

In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?

784

Does this lead to security issues?

775

How to change from su to cloudera?

771

Why password is needed in ssh localhost?

851

Un-Answered Questions { Big Data }

What are different tombstone markers in hbase?

159

Input Split & Record Reader and what they do?

1079

What does the mapred.job.tracker command do?

480

What is Hadoop Custom partitioner ?

1047

How to write 'foreach' statement for tuple datatype in pig scripts?

651

How ordering in hdfs is finished?

478

What is hive metastore?

755

What are the parameters used to create a keyspace?

114

Mention what needs to be taken care while adding a column?

What is the difference between apache mahout and prediction.io ?

What is the default location where hive stores table data?

730

Does impala use caching?

How do I get better performance with spark?

309

What language is apache spark?

313

What is the difference between spark ml and spark mllib?

308

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