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 will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?

728

What main configuration parameters are specified in mapreduce?

723

How do you stop a running job gracefully?

654

Is it necessary to write a mapreduce job in java?

671

What is shuffling and sorting in mapreduce?

697

What is the function of mapreducer partitioner?

684

What is partitioner and its usage?

755

What are the important differences between apache and hadoop?

738

Is there any point of learning mapreduce, then?

699

While processing data from hdfs, does it execute code near data?

Define the term ‘sparse vector.’

297

Define the roles of the file system in any framework?

318

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

444

List commonly used machine learning algorithm?

300

Explain the filter transformation?

337

Un-Answered Questions { Hadoop }

What are the different modes in which PIG can run and explain those?

537

How do I use spark with big data?

313

What is a spark standalone cluster?

264

Discuss how you can use filters in apache hbase

166

Explain how indexing is done in hdfs?

Explain what is a keyspace in Cassandra?

Define Nodetool Utility?

What are the features of spark rdd?

308

Can you define the process of creating ambari client?

What is CQL?

What is the default replication factor and how will you change it?

585

Explain the role of the offset?

573

Does spark require hdfs?

300

How can we create a hadoop cluster from scratch?

466

What are the key features of any nosql database?

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