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?

712

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

700

What are the uses of explode hive?

718

how can we access the sub directories recursively?

792

How do we write our own custom serde?

706

Explain the functionality of object-inspector.

721

Differentiate between hive and hbase?

761

Explain process to access sub directories recursively in hive queries.

898

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

689

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 }

Can we say cogroup is a group of more than 1 data set?

724

Why do fires spark?

299

Explain cogroup() operation in Spark?

287

State some DDL Command with brief Description?

How to Delete file from HDFS?

What are the log files of the presto server?

What is simple strategy?

131

Explain join() operation in Apache Spark?

354

How to process data using Transformation operation in Spark?

305

Define Partitions?

319

What is the number of default partitioner in hadoop?

441

How to restart Namenode?

747

what is the purpose of using hadoop for big data analytics?

535

Is namenode also a commodity?

Clarify about the smb join in hive?

658

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