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

Who invented the first spark plug?

236

What happens when you submit spark job?

265

Where is apache spark used?

280

What is parallelize in spark?

288

Can we run spark on windows?

281

How do I start a spark master?

287

What is spark checkpointing?

294

What is the latest version of spark?

271

What is mlib in apache spark?

307

What is the use of spark?

280

Why do fires spark?

302

What can I do with my m&s sparks points?

326

Is spark better than hadoop?

313

What is javardd spark?

367

Is spark streaming real time?

285

Un-Answered Questions { Hadoop }

Apache Flume support third-party plugins also?

What are the complicated steps in Flume configurations?

144

Describe Accumulator in detail in Apache Spark?

316

Can Flume can distribute data to multiple destinations?

Is there an api for implementing graphs in spark?

2040

How Big is ‘Big Data’?

431

What is mapreduce algorithm?

594

After increasing the replication level, I still see that data is under replicated. What could be wrong?

465

What happens to rdd when one of the nodes on which it is distributed goes down?

435

What is the difference between namenode, backup node and checkpoint namenode?

What is the use of InputFormat in MapReduce process?

667

What is graph db? Explain with an example.

What is the core of the job in MapReduce framework?

863

Can sqoop use spark?

Can you define yarn?

288

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