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 Reliability and Failure Handling in Apache Flume?

100

Any two Limitations of Flume?

Types of Data Flow in Flume?

107

What are Flume core components?

What are the important steps in the configuration?

Can you define what is Event Serializer in Flume?

What are the Data extraction tools in Hadoop?

Explain data flow in Flume?

What are the similarities and differences between Apache Flume and Apache Kafka?

101

What is sink processors?

What is Purpose to Validate in Sqoop?

What is the purpose of sqoop-merge?

What is the usefulness of the options file in sqoop?

How can you control the mapping between SQL data types and Java types?

How can you control the number of mappers used by the sqoop command?

Un-Answered Questions { Hadoop }

Can you list some useful zookeeper tools?

what are the most common input formats defined in Hadoop?

604

Name the examples of some companies that are using hadoop structure?

637

What are the operational commands of HBase?

181

Why is Kafka technology significant to use?

486

What is dag spark?

299

What is HBase Shell?

168

What is executor and driver in spark?

275

Why does hive not store metadata information in hdfs?

Who are Intended Audience to learn Avro?

What is hive metastore?

672

Is it mandatory to set input and output type/format in MapReduce?

674

When should you not use Cassandra? OR When to use RDBMS instead of Cassandra?

124

explaine wal in hbase?

166

What is table in hbase?

199

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