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

Explain what is shuffling in mapreduce?

668

Explain what is distributed cache in mapreduce framework?

669

Mention what are the main configuration parameters that user need to specify to run mapreduce job?

777

Explain what is the function of mapreduce partitioner?

676

Explain what is heartbeat in hdfs?

Explain what is a difference between an input split and hdfs block?

Explain how indexing in hdfs is done?

Mention what is the best way to copy files between hdfs clusters?

Mention what is the difference between hdfs and nas?

What is a difference between an input split and hdfs block?

Mention what is the data storage component used by hadoop?

481

Mention what does the text input format do?

450

Mention what daemons run on a master node and slave nodes?

509

Explain what is namenode in hadoop?

474

Explain what is a sequence file in hadoop?

509

Un-Answered Questions { Hadoop }

Is spark difficult to learn?

323

What is the use of spark in big data?

365

What are the languages in which Apache Spark create API?

312

What is difference between hive and hdfs?

662

Can you explain edge nodes in hadoop?

472

Doesn’t google have its very own version of dfs?

521

What are the basic steps to writing a UDF Function in Pig?

733

What is flume instagram?

What is the purpose of button groups?

799

Why does the picture of Spark come into existence?

324

When to use hadoop, hbase, hive and pig?

570

What is pig properties?

591

How to specify more than one path for storage in Hadoop?

551

Define fault tolerance?

692

When is it not recommended to use MapReduce paradigm for large

688

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