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

How to change a column data type in Hive?

737

How Facebook Uses Hadoop, Hive and Hbase ?

766

Mention what is HiveServer2 (HS2)?

827

What are the different IDE available for Hive Development?

748

Is Hive useful when making data warehouse applications?

802

Explain REVERSE function in Hive with example?

823

What kind of datawarehouse application is suitable for Hive?

718

Explain REPEAT function in Hive with example?

844

What does the "USE" command in hive do?

842

Can you give us some examples, how Hadoop is used in real time environment?

740

What is Apache Spark?

390

explain the key features of Apache Spark?

355

How is Apache Spark better than Hadoop?

311

Explain the term paired RDD in Apache Spark?

421

How is RDD in Spark different from Distributed Storage Management?

401

Un-Answered Questions { Hadoop }

Who is intended audience to learn avro?

Does kafka use hdfs?

529

What are the stable versions of Hadoop?

1059

What is the use of recordreader in hadoop?

459

Can you explain speculative execution?

452

Does Pig support multi-line commands?

937

What are the parameters used to create a keyspace?

114

What did mean by data-node?

477

What is rdd lineage graph? How is it useful in achieving fault tolerance?

322

How is hadoop different from spark?

284

What is a skewed join?

644

In what ways sparksession different from sparkcontext?

360

Can you explain about the indexing process in hdfs?

What are the features of apache cassandra?

Explain what is heartbeat in hdfs?

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