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

Does hadoop follows the unix pattern?

471

What is the hadoop-core configuration?

493

What is bucketing ?

731

Can we load data into a view?

741

Difference between hive and impala?

776

What are the types of hive ddl commands?

806

How can you stop a partition form being queried?

804

What is the default location where hive stores table data?

724

What are types of hive built-in functions?

774

Why do we need hive?

764

Is hive suitable to be used for oltp systems? Why?

842

What types of costs are associated with creating the index on hive tables?

1058

Give some points of hive for hadoop ?

765

Write a query to insert a new column(new_col int) into a hiev table (htab) at a position before an existing column (x_col)

824

What is a metastore in hive?

741

Un-Answered Questions { Hadoop }

What is FlumeNG?

Which query language is used in Cassandra database?

106

Which method is used to access HFile directly without using HBase?

222

Use of eval command in hadoop sqoop?

CONCAT function in Hive with Example?

861

What are the types of Transformation in Spark RDD Operations?

294

What makes Apache Spark good at low-latency workloads like graph processing and machine learning?

342

How can we drop a table in HCatalog?

What is meant by streaming access?

589

What does adminclient api in kafka?

566

How will you design or modify schema in hbase programmatically?

159

Is spark better than mapreduce?

289

List down the languages supported by Apache Spark?

298

What are the functions of presto?

Are there any special requirements for namenode?

458

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