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

Explain what is shuffling in mapreduce?

574

Explain what is distributed cache in mapreduce framework?

580

Mention what are the main configuration parameters that user need to specify to run mapreduce job?

686

Explain what is the function of mapreduce partitioner?

598

Explain what is heartbeat in hdfs?

Explain what is a difference between an input split and hdfs block?

Explain how indexing in hdfs is done?

Mention what is the best way to copy files between hdfs clusters?

Mention what is the difference between hdfs and nas?

What is a difference between an input split and hdfs block?

Mention what is the data storage component used by hadoop?

406

Mention what does the text input format do?

379

Mention what daemons run on a master node and slave nodes?

441

Explain what is namenode in hadoop?

401

Explain what is a sequence file in hadoop?

424

Un-Answered Questions { Hadoop }

What is Federation?

385

How can a user get the information on the version of CQLSH?

What is a bookie in bookkeeper?

What is distributed cache in spark?

327

What are the benefits of apache tajo?

What is the difference between hbase and hdfs?

165

What are the main features of SPM in Cassandra?

What is the difference between piglatin and hiveql?

599

What is a checkpoint?

917

What are the particular functionalities of Nagios in Ambari?

What is the difference between rdbms and hadoop?

600

What is meant by streaming access?

499

How can the columns of a table in hive be written to a file?

666

Where is spark used?

348

What is python stress test in cassandra?

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