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

Define Cassandra?

What are the parameters used to create a keyspace?

112

Describe Network Topology Strategy?

132

Give the difference between Drop and Truncate in CQLSH?

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

Define Simple Strategy?

128

Give a list of Collection data type in Cassandra?

Describe JMX?

How can a user create a Keyspace in Cassandra?

Define primary key in Apache Cassandra?

Define Thrift in Apache Cassandra?

Name different types of the data model?

Give the difference between Column and SuperColumn?

143

Define durable writes?

Define Compaction?

Un-Answered Questions { Hadoop }

Can you explain sequence file in hadoop?

404

Differentiate between the terms: node, a cluster, and data center in cassandra?

What is a dataset? What are its advantages over dataframe and rdd?

297

What is the current version of Hive?

766

Can the region server will be located on all datanodes?

316

Where the mapper's intermediate data will be stored?

638

Mention the date data type in hive. Name the hive data type collection.

689

How is RDD in Apache Spark different from Distributed Storage Management?

342

What is Bucketing and Clustering in Hive?

688

Name different types of primary keys in Cassandra?

Does Spark provide the storage layer too?

278

How to get the single file as the output from MapReduce Job?

627

Does Flume provide 100% reliability to the data flow?

137

Give me an example of document database ?

476

How do you run pig scripts on kerberos secured cluster?

545

For More Un-Answered { Hadoop } Questions Click Here