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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain task granularity

647

Explain the general mapreduce algorithm

642

What is cassandra database used for?

List out some key features of apache cassandra?

What do you understand by bloom filter in cassandra?

What is the relationship between apache hadoop, hbase, hive and cassandra?

What do you understand by data center in cassandra?

What do you understand by column family?

What do you understand by composite type?

What are "coordinator nodes" in cassandra?

What do you understand by nosql cap theorem?

What do you understand by cql?

What do you understand by mem-table in cassandra?

What is the difference between cassandra's schema and rdbms schema?

What are the befefits of nosql over relational database?

Un-Answered Questions { Big Data }

What is Secondary NameNode in Hadoop HDFS?

What all tasks you can perform for managing services using Ambari service tab?

when hadoop enter in safe mode?

744

As part of optimizing the queries in hive, what should be the order of table size in a join query?

697

Does spark use mapreduce?

286

How many ways we can create rdd?

278

Which command is used to run hbase shell?

174

What is the role of the zookeeper?

How will you connect Apache Spark with Apache Mesos?

266

What is spark context spark session?

283

How does spark rdd work?

317

How many InputSplits will be made by hadoop framework?

492

What is check pointing in hadoop?

441

When Namenode is down what happens to job tracker?

697

What is spark tool?

263

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