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

Explain the input type/format in mapreduce by default?

622

What is difference the between sqoop and distcp?

Can you explain edge nodes in hadoop?

472

Explain some important features of hadoop?

484

Why do we need hadoop for big data analytics?

473

What are the important modes of hadoop?

577

Can you explain the common input formats in hadoop?

569

Explain how are file systems checked in hdfs?

What are the different catalog tables in hbase?

180

Explain edge nodes in hadoop?

473

What are the important features of hadoop?

482

Explain the common input formats in hadoop?

512

How are file systems checked in hdfs?

What is cassandra used for?

Can hadoop replace relational database?

474

Un-Answered Questions { Hadoop }

Can you tell us how many daemon processes run on a hadoop system?

637

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

686

What is replication in kafka?

542

What are the components of Apache Pig platform?

787

Difference between cassandra and mongodb?

what is distributed cache in mapreduce framework?

725

Compare Apache Hadoop and Apache Spark?

474

What are the key features of HDFS?

What is spark lineage?

312

How do you write comments in pig scripts?

587

Can you give some examples of Big Data?

520

Explain pipe() operation in Apache Spark?

324

What are different String functions available in PIG?

625

What is a reliable and unreliable receiver in Spark?

336

What does hbase consists of?

186

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