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

Big Data Interview Questions

Questions Answers Views Company eMail

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?

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?

Un-Answered Questions { Big Data }

Why do we perform partitioning in Hive?

748

Explain some Disadvantages of Avro?

What are the different commands used to startup and shutdown Hadoop daemons?

527

What are the independent extensions that are contributed to the ambari codebase?

What are the tools that are used in ambari monitoring?

Explain Spark Core?

300

Explain cassandra data model?

Does Apache Spark provide checkpoints?

284

When to avoid secondary indexes?

Mention how hadoop is different from other data processing tools?

409

How does hdfs ensure information integrity of data blocks squares kept in hdfs?

What are some of the different modes used in hadoop.

494

What is the difference between cache and persist in spark?

331

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

907

What is pre-requisites for contributing to apache mahout ?

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