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

What is the role of Zookeeper in HBase architecture?

606

What are the different types of tombstone markers in HBase for deletion?

866

Is there any difference between HBase datamodel and RDBMS datamodel?

1089

What is Apache Flume?

108

What is difference between memory channel and file channel in flume?

How multi-hop agent can be setup in Flume?

110

Explain a common use case for Flume?

Explain about the different channel types in Flume.

What are core components of Flume?

100

Which channel type is faster in Flume?

122

What are Flume events?

How many Reducers should be configured?

180

Can we change the body of the flume event?

Does Flume provide 100% reliability to the data flow?

137

Explain about the core components of Flume?

Un-Answered Questions { Hadoop }

What is flume instagram?

Describe Spark SQL?

342

What is fsck?

642

What is the role of the kafka producer api.

532

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

320

What mode(s) can hadoop code be run in?

459

Explain how indexing is done in hdfs?

What is meant by streaming access?

546

Can I set the number of reducers to zero?

397

What is rdd partition?

318

What are the Hadoop features extended to its eco-system components ?

439

What is job tracker in Hadoop?

500

What are the most memory-intensive operations?

what is NameNode in Hadoop?

878

What are the different composite keys in Cassandra?

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