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 is simple strategy?

133

Why is jconsole used? What is it’s different elements?

What is jmx? And how is it useful in cassandra?

What are the different types of data model?

How does cassandra perform write operations?

Why is cqlsh used?

138

What are tokens in cassandra?

What is a column family?

Explain the terms memtable, commitlog and sstables.

What is hinted handoff?

What are the key features of any nosql database?

What is column store db?

Differentiate between drop and truncate in cqlsh

What is a yaml file in cassandra?

What is anti-entropy and how is it associated with merkel tree?

Un-Answered Questions { Hadoop }

What is spooldir flume?

What sorts of actions does the job tracker process perform?

474

Illustrate some demerits of using Spark.

336

Explain the use of .mecia class?

821

What is the relationship between Jobs and Tasks in Hadoop?

652

What are the types of System tools?

694

Does spark use mapreduce?

304

What are the different functions available in pig latin language?

606

What is a bag in Pig Latin?

897

How does apache spark engine work?

332

Define SSTable?

What is spark and what is its purpose?

286

Which is the best spark certification?

305

when hadoop enter in safe mode?

794

How can hive avoid mapreduce?

741

For More Un-Answered { Hadoop } Questions Click Here