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 possible to leverage real time analysis on the big data collected by flume directly? If yes, then explain how?

Why we are using flume?

Mention when to use Map reduce mode?

679

what Hive is composed of ?

727

Give the command to see the indexes on a table?

963

Can the name of a view be same as the name of a hive table?

803

Explain the Use of Hive?

744

What is the difference between like and rlike operators in hive?

795

How to managed create a table in hive ?

767

what is Metastore in Hive?

721

Mention key components of Hive Architecture?

896

what Hive query processor does?

709

What does the following query do? Insert overwrite table employees partition (country, state) select ..., Se.cnty, se.st from staged_employees se;

962

While loading data into a hive table using the load data clause, how do you specify it is a hdfs file and not a local file ?

770

What is a table generating function on hive?

761

Un-Answered Questions { Hadoop }

What are the key elements in ZooKeeper Architecture?

State use cases of impala?

What is the difference between spark and hive?

338

What is Importance of Java in Apache Kafka?

584

Explain what is the purpose of RecordReader in Hadoop?

785

What is the purpose of button groups?

807

Can you list down the limitations of using Apache Spark?

325

Define standalone mode in hbase?

147

What are Paired RDD?

331

What are different modes of metastore deployment in Hive?

733

How does a log flume work?

What happens if the block in HDFS is corrupted?

What jobtracker is in hadoop? What are the activities followed by hadoop?

469

Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?

473

What is the difference betwaeen mapreduce engine and hdfs cluster?

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