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

How kafka communicate with clients and servers?

519

What is log compaction?

528

Kafka has written in which languages?

534

What exactly kafka does?

472

What are consumers in kafka?

539

What does producer api in kafka?

487

What does consumer api in kafka?

507

How can you configur the log cleaner?

566

What are the core api’s of kafka?

501

How can you use streams api?

536

How can you create topic in kafka?

544

How can you send some messages in kafka?

501

What are broker configs?

531

What are quotas?

504

What are producers in kafka?

520

Un-Answered Questions { Hadoop }

What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?

444

Which command is used to show the current hbase user?

192

Can hadoop handle streaming data?

461

Explain apache spark streaming? How is the processing of streaming data achieved in apache spark?

306

Can you briefly explain the apache mahout?

Map reduce jobs are failing on a cluster that was just restarted. They worked before restart. What could be wrong?

601

Explain the term 'Log Anatomy'?

540

What are the most commonly defined input formats in Hadoop?

1058

Define ttl in hbase?

164

What are the names of daemons in impala?

What do you mean by ss table and explain how it is different from the other original tables?

What is the meaning of the term "non-DFS used" in Hadoop web-console?

1308

Can hive queries be executed from script files? How?

660

What are the ways to launch Apache Spark over YARN?

280

Define Apache Pig?

622

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