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

Knox and Hadoop Development Tools?

927

In which location Name Node stores its Metadata and why?

1393

Is a job split into maps?

1036

What are different hdfs dfs shell commands to perform copy operation?

1060

If a data Node is full how it's identified?

937

How many filters are available in HBase?

441

What are the site-specific configuration files in Hadoop?

1091

On what basis data will be stored on a rack?

1140

How is HDFS fault tolerant?

1037

How to Administering Hadoop?

902

What are the main components of a Hadoop Application?

1039

How to resolve small file problem in hdfs?

980

what factors the block size takes before creation?

1034

Which are the two types of 'writes' in HDFS?

1219

Explain use cases where SequenceFile class can be a good fit?

941

Un-Answered Questions { Hadoop }

Why is spark good?

290

What ports does Cassandra use?

What does hadoop-metrics.properties file do?

529

What is the full form of MSLAB?

225

What are channel selectors?

1029

What is “serde” in “hive”?

693

Is hadoop a memory?

702

Where does the data of a Hive table gets stored?

668

Explain what is hbase?

151

What is KeyValueTextInputFormat in Hadoop?

529

What does job conf class do?

668

Does diesel engine have spark plug?

353

What do you understand by sstabl in cassandra?

Is it possible to split 100 lines of input as a single split in MapReduce?

964

Why is pig used in hadoop?

570

For More Un-Answered { Hadoop } Questions Click Here