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

Why Hive is not suitable for OLTP systems?

780

What is BloomMapFile used for?

712

In case of embedded Hive, can the same metastore be used by multiple users?

848

What are the Binary Storage formats supported in Hive?

764

I want to see the present working directory in UNIX from hive. Is it possible to run this command from hive?

712

What is the use of explode in Hive?

770

How data transfer happens from HDFS to Hive?

879

Can we say cogroup is a group of more than 1 data set?

781

How can the columns of a table in hive be written to a file?

754

What are the different collection type in Hive?

750

How would you drop a table in Hive?

782

When a large data set is maintained?

779

What is Bucket in Hive?

783

When you are dealing with static data instead of dynamic data?

780

What is Hive Database?

747

Un-Answered Questions { Hadoop }

How to skip header rows from a table in Hive?

866

Use of version command in hadoop sqoop?

How is machine learning implemented in spark?

349

Can spark work without hadoop?

353

What is the use of binstorage?

599

How can we look for the namenode in the browser?

756

What is the difference between cassandra's schema and rdbms schema?

How much is flume worth?

What is Yum?

What are the benefits of apache tajo?

What daemons run on master nodes?

520

What are 'slaves' and 'masters' in Hadoop?

477

What is row rdd in spark?

308

Use of import-all-tables command in hadoop sqoop?

What is Importance of Java in Apache Kafka?

592

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