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

How can I improve my spark performance?

299

What is apache spark architecture?

335

Why spark is faster than hive?

322

What happens if rdd partition is lost due to worker node failure?

473

What is pair rdd in spark?

297

What is difference between cache and persist in spark?

289

Is bigger than spark driver maxresultsize?

313

Does spark use java?

334

How do you process big data with spark?

301

What is a spark shuffle?

342

Why do we need apache spark?

296

How do I optimize my spark code?

323

What is the difference between client mode and cluster mode in spark?

343

What are transformations in spark?

327

What is driver and executor in spark?

322

Un-Answered Questions { Hadoop }

What is the primary purpose of the pig in the hadoop architecture?

2763

How to perform the inter-cluster data copying work in HDFS?

How do you write comments in pig scripts?

585

Write the command to start and stop the spark in an interactive shell?

284

Who is intended audience to learn HCatalog?

Are results returned as they become available, or all at once when a query completes?

What is Thrift?

How is the splitting of file invoked in Hadoop ?

569

What is apache mahout?

State some applications of HBase?

173

How many numbers of reducers run in Map-Reduce Job?

648

What is the use of context object?

504

What is spark good for?

357

What is Spark?

291

What is setmaster in spark?

328

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