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 Ambari shell?

How is Ambari different from ZooKeeper?

Why Ambari?

200

State benefits of Hadoop users by using Apache Ambari?

How to set up local repository manually?

In which language is the Ambari Shell is developed?

State some Ambari components which we can use for automation as well as integration?

110

What are the different methods to set up local repositories?

Name some best features of Ambari?

What is the process of creating an Ambari client?

Name some independent extensions that contribute to the Ambari codebase?

How can we see all the hosts that are available in Ambari?

Explain future growth of Apache Ambari?

Can we use Ambari Python Client to use of Ambari API’s?

Which command is used to list all the tables in a database or list all the columns in a table?

Un-Answered Questions { Hadoop }

What main configuration parameters are specified in mapreduce?

688

What are the components of a Hive query processor?

741

How to write 'foreach' statement for map datatype in pig scripts?

673

What is zookeeper in hadoop?

659

What is Spark SQL?

308

How is spark sql different from hql and sql?

273

What is difference between split and block in hadoop?

1401

How to write a query in Cassandra?

104

Define streaming access?

675

Ideally what should be the replication factor in hadoop?

435

What are the different operational commands in HBase at record level and table level?

363

What is the function of UNION and SPLIT operators? Give examples?

539

Name some sources from where Spark streaming component can process real-time data?

294

What is Cassandra Data Modelling ?

Difference Between Apache Sqoop vs Flume?

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