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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What is Apache Spark Machine learning library?

337

What is the use of map transformation?

324

Explain the run-time architecture of Spark?

312

List the advantage of Parquet files?

311

Name the Spark Library which allows reliable file sharing at memory speed across different cluster frameworks.

322

Please provide an explanation on DStream in Spark.

295

List the languages supported by Apache Spark?

319

Explain the Parquet File format in Apache Spark. When is it the best to choose this?

378

Explain lineage graph

328

Is the following approach correct? Is the sqrt Of Sum Of Sq a valid reducer?

487

What is Apache Spark and what are the benefits of Spark over MapReduce?

296

What are the cases where Apache Spark surpasses Hadoop?

295

What is the bottom layer of abstraction in the Spark Streaming API ?

809

Which the fundamental data structure of Spark

328

List the advantage of Parquet file in Apache Spark?

470

Un-Answered Questions { Hadoop }

How can you use producer api code?

563

Difference between Sqoop and Cassandra?

How to create a user in Hadoop?

543

What is executor spark?

315

Highlight the difference between group and Cogroup operators in Pig?

912

What do you understand by sstabl in cassandra?

What is hive installation path?

793

What is azure spark?

315

Why is apache spark so fast?

299

What is meant by Transformation? Give some examples.

323

Can I do insert … select * into a partitioned table?

How does apache spark work?

310

What do you mean by Schema Declaration?

What are the general Prerequisites to learn HCatalog?

What are the types of hive ddl commands?

814

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