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 a bloom filter?

162

Explain what is hbase?

151

hbase support syntax structure like sql. Yes or no?

200

What happens if you alter the block size of a column family on an already occupied database?

218

Define the term thrift

134

Explain what does hbase consists of?

159

Why to use hbase?

154

Explain what happens if you alter the block size of a column family on an already occupied database?

168

Explain totuple function?

601

Explain avrostorage function?

627

How do you handle compression in pig?

561

How do you organize the pig latin statements?

577

Explain tobag function?

553

How do you run the pig scripts in local mode?

526

What is flatten in pig?

620

Un-Answered Questions { Hadoop }

explaine wal in hbase?

173

What is the primary objective of NoSQL databases?

What is CAP Theorem? What aspects does Hadoop support from this theorem?

473

How is streaming implemented in spark?

1847

How will you write a custom partitioner for a Hadoop job?

453

Why HDFS?

Name some companies that are already using Spark Streaming?

268

What are the data components used by Hadoop?

738

Define Thrift?

268

Is hadoop mandatory for spark?

281

List the various components in kafka?

539

How do you run pig scripts on kerberos secured cluster?

545

How do you handle compression in pig?

561

What combiners are and when you should utilize a combiner in a map reduce job?

604

What is apache flume used for?

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