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

Big Data Interview Questions

Questions Answers Views Company eMail

Can we deploy job tracker other than name node?

729

Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?

480

How many maps are there in a particular job?

506

Can I set the number of reducers to zero?

438

Doesn’t google have its very own version of dfs?

529

What are the restriction to the key and value class ?

470

If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?

725

If datanodes increase, then do we need to upgrade namenode?

521

Which object can be used to get the progress of a particular job

521

Give me examples of unstructured data?

530

Explain the core methods of the reducer?

551

How to handle bad records during parsing?

495

What is the use of context object?

514

What happens if number of reducers are 0?

515

What are the primary phases of the reducer?

494

Un-Answered Questions { Big Data }

What platform and java version are required to run hadoop?

738

What is meant by in-memory processing in Spark?

323

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

182

When and how to create hadoop archive?

493

Double type in Hive - Important points?

723

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

587

what are the nodes in the Hadoop cluster?

1079

Can impala be used for complex event processing?

169

Explain the first step in big data solutions.

576

Does impala support generic jdbc?

What is Hive Database?

747

how to share the metastore within multiple users?

972

What are the important differences between apache and hadoop?

738

Give the data storage units in Cassandra?

What type of data hadoop can handle ?

477

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