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 are the different types of Ambari repositories?

What is a local repository and when will you use it?

169

What are the tools you need to build Ambari?

112

What are the different tools used for Ambari monitoring purpose?

What is Yum?

What are the benefits of setting up a local repository?

What is the latest version of Ambari that is available in the market?

Explain different life cycle commands in Ambari?

What is the Repository?

What is the feature that they have added in the latest release?

What all tasks you can perform for managing services using Ambari service tab?

What are the operating systems supported by Apache Ambari?

What all tasks you can perform for managing host using Ambari host tab?

Explain some of the basic commands used for Apache Ambari server?

What is Apache Avro?

Un-Answered Questions { Hadoop }

How will you calculate the number of executors required to do real-time processing using Apache Spark? What factors need to be considered for deciding on the number of nodes for real-time processing?

272

Define replication factor?

What is SequenceFileInputFormat in Hadoop MapReduce?

599

Explain how you can get exactly once messaging from kafka during data production?

488

What are the limitations of importing RDBMS tables into Hcatalog directly?

903

How hdfs is different from traditional file systems?

Explain about the replication and multiplexing selectors in Flume?

100

When does the queue full exception emerge inside the manufacturer?

474

In the Producer, when does QueueFullException occur?

517

How can we change the split size if our commodity hardware has less storage space?

626

Which all languages Apache Spark supports?

330

What do we mean by Paraquet?

433

What are channel selectors?

960

What is difference between hadoop and spark?

289

What is table in hbase?

202

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