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?

558

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

609

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

610

How does the Pig platform handle relational systems data?

583

why should we use 'filters' in pig scripts?

592

Does 'ILLUSTRATE' run a MapReduce job?

568

What Is Difference Between Mapreduce and Pig ?

677

What is the use of BloomMapFile?

719

Explain the uses of Map Reduce in Pig?

583

What are different String functions available in PIG?

627

What are the exception handling operators in Pig script?

621

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

575

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

581

What are the drawbacks of Pig?

656

What is the difference between store and dumps commands?

703

Un-Answered Questions { Hadoop }

Do I need to learn scala for spark?

328

How to create hadoop archive?

460

How will you implement joins in HBase?

180

What is serialization in spark?

334

What is anti-entropy and how is it associated with merkel tree?

Explain the shuffle?

959

Clarify what is sqoop in hadoop?

469

Can you list down the limitations of using Apache Spark?

326

How many ways we can create rdd in spark?

309

How is RDD in Spark different from Distributed Storage Management?

401

Explain the processing speed difference between Hadoop and Apache Spark?

304

How does hdfs provides good throughput?

What is the importance of eval tool?

What is meant by rdd in spark?

281

What is the main difference between kafka and fume?

628

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