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 do you understand by Consistency in Cassandra?

How many types of NoSQL databases are there?

143

Does Cassandra works on Windows?

What is Cassandra Data Modelling ?

Name the ports Cassandra uses?

What is Cassandra Data Model?

What is a Seed Node in Cassandra ?

What are the three components of Cassandra write?

116

What do you understand by Thrift?

What is Thrift?

Explain what is a keyspace in Cassandra?

What do you mean by commit log in Cassandra?

What is SuperColumn in Cassandra?

109

What is a Cluster, Node and Key space in Cassandra ?

199

What is node in Cassandra?

Un-Answered Questions { Hadoop }

What is Rack Awareness in Apache Hadoop?

811

Explain some Kafka Streams real-time Use Cases?

526

What is the default port of presto?

What are Paired RDD?

315

What does apache spark do?

322

What are some typical functions of job tracker in hadoop?

418

Explain about the popular use cases of Apache Spark

428

What is a local repository and when will you use it?

169

Is spark secure?

283

Explain accumulators in apache spark.

2074

Name different types of primary keys in Cassandra?

Discuss writeahead logging in Apache Spark Streaming?

326

What are the steps involved in MapReduce framework?

982

Define paired RDD in Apache Spark?

279

how indexing in HDFS is done?

855

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