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

Big Data Interview Questions

Questions Answers Views Company eMail

On what basis name node distribute blocks across the data nodes in HDFS?

1 65

Why is Reading done in parallel and writing is not in HDFS?

1 67

Can multiple clients write into an HDFS file concurrently in hadoop?

1 90

How to create Users in hadoop HDFS?

1 94

How to transfer data from Hive to HDFS?

1 57

Why HDFS stores data using commodity hardware despite the higher chance of failures in hadoop?

1 55

What is Hadoop Distributed File System- HDFS?

1 57

What is throughput in HDFS?

1 80

How is hadoop related to the big data? Describe its components?

1 559

What are 5 vs of big data ?

1 603

Connection between hadoop and big data?

1 601

Define big data?

1 629

What is data processing in big data?

1 738

Explain the five vs of big data?

1 603

Define role of variety in big data?

1 619

Un-Answered Questions { Big Data }

Which modes can Hadoop be run in? List a few features for each mode?

517

How can you import only a subset of rows from a table?

What is the function of UNION and SPLIT operators? Give examples?

578

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

518

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

What is a Hive variable? What for we use it?

854

What is the roadmap for apache mahout version 1.0?

Can We Change settings within Hive Session? If Yes, How?

836

How can I delete the above index named index_bonuspay?

777

State some DDL Command with brief Description?

What is the stable version of Hive ?

2673

When to use explode in Hive?

803

What is the latest version of spark?

288

How do I set up flume agent?

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