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 nlineoutputformat?

1 734

Explain why do we need hadoop?

1 724

Explain the features of pseudo mode?

1 757

What do shuffling do?

1 728

Explain the basic difference between traditional rdbms and hadoop?

1 706

Explain what if rack 2 and datanode fails?

1 683

Define a job tracker?

1 757

Explain the features of fully distributed mode?

1 683

What are the characteristics of hadoop framework?

1 711

Explain how can we change the split size if our commodity hardware has less storage space?

1 701

Explain how is hadoop different from other data processing tools?

1 776

Define a datanode?

1 700

Is secondary namenode a substitute to the namenode?

1 737

What is a secondary namenode?

1 686

What is unstructured data?

1 717

Un-Answered Questions { Big Data }

How job tracker schedules an assignment?

473

Explain how RDDs work with Scala in Spark

355

State some DDL Command with brief Description?

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

579

How you can contact your client everyday ?

1013

When to use explode in Hive?

803

How to skip header rows from a table in Hive?

872

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

What is the roadmap for apache driver version one.0?

What is the roadmap for apache mahout version 1.0?

What is the stable version of Hive ?

2673

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

1059

When to choose "External Table" in Hive?

847

What is the latest version of spark?

288

What is the latest version of sqoop?

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