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

List out the commands that are used to start, check the progress and stop the ambari server?

What are the tools that are used in ambari monitoring?

What does ambari shell can provide?

What are the different life cycle commands in ambari?

Before deploying the hadoop instance, what are the checks that an individual should do?

What are the independent extensions that are contributed to the ambari codebase?

What is apache ambari?

114

What are the tools that are needed to build ambari?

What is ganglia is used for in ambari?

What is nagios is used in ambari?

109

What is the latest version of ambari that is available in the market and what is the feature that they have added in it?

What are the areas where ambari helps the system administrators to do?

Give any two features of flume?

102

What is fluming?

161

Does apache flume support third-party plugins?

Un-Answered Questions { Hadoop }

Explain the process to trigger automatic clean-up in Spark to manage accumulated metadata.

325

how Cassandra writes data?

133

What is accumulator in spark?

511

How Spark uses Akka?

332

Explain what is difference between an input split and hdfs block?

Explain apache kafka?

561

In which language ambari shell is developed?

What is UDF in Pig?

692

What are the most common InputFormats in Hadoop?

647

How many partitions are created by default in Apache Spark RDD?

319

Is spark part of hadoop ecosystem?

308

How is hadoop different from spark?

284

Which file systems does Spark support?

309

Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

769

What do you mean by schema on read?

759

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