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 you explain bloommapfile.

1 521

Why is checkpointing important in hadoop?

1 525

What happens when two clients try to access the same file in the hdfs?

1 519

What do you know about the speculative execution?

1 517

What are the differences between hadoop 1 and hadoop 2?

1 488

Why do the nodes are removed and added frequently in a hadoop cluster?

1 528

What is a namenode?

1 453

Can hadoop handle streaming data?

1 508

What is hadoop? Name the main components of a hadoop application?

1 493

What do you know about yarn?

1 473

What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?

1 507

What is the purpose of exploding in hive?

1 729

Can you list few commonly used hive services?

1 697

What is the difference between piglatin and hiveql?

1 723

How can you transfer data from hive to hdfs?

1 778

Un-Answered Questions { Big Data }

Explain how RDDs work with Scala in Spark

367

What is meant by Transformation? Give some examples.

341

Give me the examples of Columnar database ?

646

What is the roadmap for apache mahout version 1.0?

What are the different types of tables available in Hive?

749

What is the latest version of spark?

304

How job tracker schedules an assignment?

478

What is the latest version of ambari that is available in the present market?

List the advantage of Parquet file in Apache Spark?

489

How to skip header rows from a table in Hive?

875

How can I delete the above index named index_bonuspay?

781

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

840

How you can contact your client everyday ?

1018

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

587

When to choose "External Table" in Hive?

851

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