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

On which all platform can Apache Spark run?

269

What do we mean by Paraquet?

449

Explain various cluster manager in Apache Spark?

381

What is the difference between DAG and Lineage?

1623

What are the file formats supported by spark?

307

List some use cases where Spark outperforms Hadoop in processing.

293

Explain the use of File system API in Apache Spark

288

How can you minimize data transfers when working with Spark?

349

Explain about the common workflow of a Spark program?

339

What do you understand by receivers in Spark Streaming ?

326

By Default, how many partitions are created in RDD in Apache Spark?

306

What are broadcast variables in Apache Spark? Why do we need them?

313

Is it necessary to start Hadoop to run any Apache Spark Application ?

282

What is write ahead log(journaling)?

310

Does Apache Spark provide checkpoints?

286

Un-Answered Questions { Hadoop }

Which all languages Apache Spark supports?

345

What is the difference between hadoop and spark?

273

State some key Points about Apache Avro?

How do I get apache spark on windows 10?

299

What is the history of apache mahout? When did it start?

can you explain about configuration files?

What is Hadoop Distributed File System- HDFS?

Explain mappartitions() and mappartitionswithindex()?

425

What jobtracker is in hadoop? What are the activities followed by hadoop?

428

Where does spark plug get power?

277

What is the key difference between textfile and wholetextfile method?

266

Is kafka open source?

507

What is the major difference between local and remote meta-store?

912

What are the components used in Hive query processor?

879

How does bloom filter help in searching rows?

219

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