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Hadoop Interview Questions
Questions Answers Views Company eMail

Is the keyword 'DEFINE' like a function name?

 588

What is the difference between Cassandra, Pig and Hive?

 592

Does 'ILLUSTRATE' run MR job?

 593

What is the use of "order by" in Hive?

 628

What are the different components of a Hive query processor?

 1106

If you run hive as a server, what are the available mechanism for connecting it from application?

 583

How to use Hive using the command line and Beeline?

 584

What is Hive Data Definition language?

 594

How to enable buckets in Hive?

 560

What is the difference between external table and managed table?

 582

What are the different Complex Data Types available in Hive?

 623

Difference between external table and internal table in HIVE ?

 618

When you should use Hbase?

 587

What is CONCATENATE command in Hive?

 576

What is dynamic partitioning and when is it used?

 616

Un-Answered Questions { Hadoop }

Why is spark used?

168

How is it completely different from doing machine learning in r or sas?

35

What is apache spark used for?

179

Are Cassandra, Hadoop, Hbase and Cassandra are the same in nature? Specify.

43

What is TaskTracker?

269




What is coalesce in spark?

189

What is Apache Zookeeper Meant For?

5

Explain what is kafka?

306

List out Hadoop's three configuration files?

347

What load do concurrent queries produce on the namenode?

43

How to copy file from HDFS to local?

38

Does Apache Spark provide check pointing?

315

The partition of hive table has been modified to point to a new directory location. Do I have to move the data to the new location or the data will be moved automatically to the new location?

734

Explain various cluster manager in Apache Spark?

291

How can you trigger automatic clean-ups in Spark to handle accumulated metadata?

319

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