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?

884

In which location Name Node stores its Metadata and why?

1359

Is a job split into maps?

998

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

1019

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

890

How many filters are available in HBase?

419

What are the site-specific configuration files in Hadoop?

1028

On what basis data will be stored on a rack?

1092

How is HDFS fault tolerant?

999

How to Administering Hadoop?

870

What are the main components of a Hadoop Application?

1000

How to resolve small file problem in hdfs?

938

what factors the block size takes before creation?

985

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

1176

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

908

Un-Answered Questions { Hadoop }

What is the work of Export in Hadoop sqoop?

Explain about the different cluster managers in Apache Spark

322

What is oozie in hadoop?

638

How job tracker schedules an assignment?

382

What is map side join?

291

How can we scale apache mahout in cloud?

Can Apache Kafka be used without Zookeeper?

989

What stored in HDFS?

878

How does hdfs give great throughput?

Compare Spark vs Hadoop MapReduce

321

Is it possible to change the default location of Managed Tables in Hive, if so how?

687

What is the NameNode port number?

369

List Hadoop’s three configuration files?

395

Why spark is faster than hadoop?

241

What is a spark context?

255

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