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

Big Data Interview Questions

Questions Answers Views Company eMail

Can you explain edge nodes in hadoop?

480

Explain some important features of hadoop?

495

Why do we need hadoop for big data analytics?

482

What are the important modes of hadoop?

588

Can you explain the common input formats in hadoop?

575

Explain how are file systems checked in hdfs?

What are the different catalog tables in hbase?

180

Define big data analytics?

583

Define data lake?

645

Explain the core methods of a reducer?

552

What are the benefits of big data?

578

Explain the characteristics of big data?

550

Explain ingestion in big data?

682

Define fsck?

574

Define taskinstance?

567

Un-Answered Questions { Big Data }

JMX stands for?

110

Which is the reliable channel in Flume to ensure that there is no data loss?

135

In hadoop_pid_dir, what does pid stands for?

588

What is the jobtracker?

680

Is there a date data type in Hive?

787

Mention some important components of cassandra data models?

List the steps in which Cassandra writes changed data into commitlog?

252

Is it possible to iterate through the rows of HBase table in reverse order?

218

What is HDFS High Availability?

1021

How is big data analysis helpful in increasing business revenue?

572

Is spark written in scala?

312

What is the role of “ambari-qa” user?

What is the history of apache mahout? When did it start?

Can spark be used without hadoop?

283

Highlight the key differences between MapReduce and Apache Pig?

756

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