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

What are the core components of Hadoop?

559

What are the Features of Hadoop?

568

Compare Hadoop and RDBMS?

456

What are the modes in which Hadoop run?

557

What are the features of Standalone (local) mode?

652

What are the features of Pseudo mode?

553

What are the features of Fully-Distributed mode?

555

What are configuration files in Hadoop?

565

What are the limitations of Hadoop?

622

Compare Hadoop 2 and Hadoop 3?

467

Explain Data Locality in Hadoop?

583

What is the problem with small files in Hadoop?

573

How is security achieved in Hadoop?

563

Why does one remove or add nodes in a Hadoop cluster frequently?

740

What is throughput in Hadoop?

581

Un-Answered Questions { Hadoop }

How do you define a partitioning key?

573

What is Hadoop serialization?

748

Explain what is distributed cache in mapreduce framework?

677

How to load data into table created in hive ?

747

Does Apache Sqoop have a default database?

What kinds of impala queries or data are best suited for hbase?

What is the definition of Hive?

777

What is the required action you need to perform if you opt for scheduled maintenance on the cluster nodes?

What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?

1075

Who is intended audience to learn HCatalog?

What are "coordinator nodes" in cassandra?

What is Spark?

292

What is the full form of MSLAB?

231

What is the jobtracker and what it performs in a hadoop cluster?

669

Explain what combiners are and when you should use a combiner in a mapreduce job?

669

For More Un-Answered { Hadoop } Questions Click Here