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

How to change a column data type in Hive?

656

How Facebook Uses Hadoop, Hive and Hbase ?

667

Mention what is HiveServer2 (HS2)?

742

What are the different IDE available for Hive Development?

655

Is Hive useful when making data warehouse applications?

696

Explain REVERSE function in Hive with example?

723

What kind of datawarehouse application is suitable for Hive?

652

Explain REPEAT function in Hive with example?

742

What does the "USE" command in hive do?

739

Can you give us some examples, how Hadoop is used in real time environment?

663

What is Apache Spark?

352

explain the key features of Apache Spark?

326

How is Apache Spark better than Hadoop?

294

Explain the term paired RDD in Apache Spark?

381

How is RDD in Spark different from Distributed Storage Management?

368

Un-Answered Questions { Hadoop }

What causes sparks?

283

Name some best features of Ambari?

Explain what is memtable in cassandra?

What are benefits of DataFrame in Spark?

318

What are the main benefits of using cassandra?

Is spark better than hadoop?

299

What is ColumnFamily?

Explain avrostorage function?

584

Can we run spark without hadoop?

281

What is gossip protocol in Cassandra?

Can I do trforms or add new functionality?

Give some points of hive for hadoop ?

679

Differentiate HDFS & HBase?

What is the role of a zookeeper in a kafka cluster?

504

Explain the Methods Of ZooKeeper class?

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