Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

How hive can improve performance with orc format tables?

777

How to change the column data type in hive? Explain rlike in hive.

758

What are the uses of explode hive?

779

how can we access the sub directories recursively?

854

How do we write our own custom serde?

750

Explain the functionality of object-inspector.

784

Differentiate between hive and hbase?

814

Explain process to access sub directories recursively in hive queries.

963

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

745

What is the local repository and where it is useful while using ambari environment?

Explain repository in apache ambari?

Explain the functionalities of the nagios in ambari?

Can ambari manage multiple clusters and why?

What is the latest version of ambari that is available in the present market?

In ambari what are the different life cycle commands?

Un-Answered Questions { Big Data }

Where are Hadoop’s configuration files located?

557

What are partitions and tokens in cassandra?

Can I do transforms or add new functionality?

What is Immutable?

352

What is the Reducer used for?

990

Web-ui shows that half of the datanodes are in decommissioning mode. What does that mean? Is it safe to remove those nodes from the network?

501

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

745

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

558

Why big data use?

614

How can one write custom record reader?

540

Explain the Methods Of ZooKeeper class?

What is RDD?

502

What is SparkSession in Apache Spark?

307

Can any impala query also be executed in hive?

Explain the key features of Spark.

304

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