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

is it posible to join multiple fields in pig scripts?

534

What are all stats classes in the org.apache.pig.tools.pigstats package?

568

What is Pig Statistics? What are all stats classes in the Java API package available?

578

How does the Pig platform handle relational systems data?

551

why should we use 'filters' in pig scripts?

562

Does 'ILLUSTRATE' run a MapReduce job?

530

What Is Difference Between Mapreduce and Pig ?

632

What is the use of BloomMapFile?

685

Explain the uses of Map Reduce in Pig?

551

What are different String functions available in PIG?

599

What are the exception handling operators in Pig script?

581

How should 'load' keyword is useful in pig scripts?

535

When we write a= load …, what does 'a' called?

538

What are the drawbacks of Pig?

606

What is the difference between store and dumps commands?

671

Un-Answered Questions { Hadoop }

What is CQL?

Define streaming access?

675

What are different types of filesystem?

1145

List commonly used machine learning algorithm?

292

What is the Job interface in MapReduce framework?

914

What do you mean by column family?

Which language is not supported by spark?

335

Can I install spark on windows?

280

Why HDFS performs replication, although it results in data redundancy in Hadoop?

What is master node in spark?

304

What are the different components of a Hive query processor?

1426

Which technique can you use in hbase to access hfile directly without the help of hbase?

173

what is a sequence file in Hadoop?

678

How do users interact with the shell in apache pig?

544

What are the ways in which Apache Spark handles accumulated Metadata?

354

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