Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop Interview Questions

Questions Answers Views Company eMail

How is jmx useful in cassandra?

How does cassandra perform read operation?

What are the different types of nosql databases?

Explain the term memtable?

How does cassandra perform read operation? Explain

What is anti-entropy?

What are the different types of partitioners in cassandra? Explain.

What is a row in cassandra?

Explain the term sstables?

How is anti-entropy associated with merkel tree?

What do you mean by logging in cassandra?

What do you mean by replication strategy?

How data or a file is written into hdfs?

What is a namenode in hadoop?

What is secondary namenode?

Un-Answered Questions { Hadoop }

Which port does SSH work on?

435

What is the difference between Column and SuperColumn?

152

What is pregel api?

319

Name a few commonly used spark ecosystems?

303

Is kafka big data?

516

If you omit the overwrite clause while creating a hive table,what happens to file which are new and files which already exist?

809

What is flume interceptor?

Explain the role of the offset?

569

Is spark better than mapreduce?

289

Which language is not supported by spark?

347

What are the advantages of DataFrame?

322

How can you control the number of mappers used by the sqoop command?

What is Implicit Type conversion in Hive?

843

What is zookeeper server?

What types of costs are associated in creating index on hive tables?

880

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