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

Big Data Interview Questions

Questions Answers Views Company eMail

Are multiline comments supported in Hive?

3343

How does MapReduce framework view its input internally?

928

What is the stable version of Hive ?

2669

What are the most commonly defined input formats in Hadoop?

1106

What does /var/hadoop/pids do?

1328

What is the use of Combiner?

1023

What is Hive ?

1048

what is SPF?

1565

what are Task Tracker and Job Tracker?

1128

Explain the basic architecture of Hadoop?

999

On what basis name node distribute blocks across the data nodes?

1109

Name some companies that use Hadoop?

Airtel,

1011

what is hadoop archive?

969

Rack awareness of Namenode?

918

Have you ever used Counters in Hadoop. Give us an example scenario?

1101

Un-Answered Questions { Big Data }

Explain the responsibilities of a data analyst?

587

Which one is better hadoop or spark?

324

How does broadcast join work in spark?

321

What is streaming access?

545

Why do we need Hadoop Archives? How is it created?

613

Explain what is zookeeper in kafka? Can we use kafka without zookeeper?

580

Kafka has written in which languages?

588

What is the meaning of speculative execution in Hadoop? Why is it important?

1092

What is KeyValueTextInputFormat in Hadoop?

584

What are the actions in spark?

295

What do you understand by Lazy Evaluation?

393

What is UDF?

963

Define taskinstance?

564

Establish the difference between a node, cluster & data centres in Cassandra.

156

What is flume agent?

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