Answer / Satyendra Vikram Singh

In Cassandra, a Data Center represents a physical location where one or more nodes of the Cassandra cluster reside. Each Data Center can contain multiple racks and datacenters are used to minimize latency and increase fault tolerance.

What is document store db? Explain with an example.

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when you can use Alter keyspace?

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Specify Cassandra’s importance on Facebook?

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What do you understand by column family?

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Explain the different logging levels in cassandra.

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In which language Cassandra is written?

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What is key-value store db? Explain with an example.

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What are the different types of partitioners in cassandra?

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Explain the fundamental difference between Cassandra and Hadoop?

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Mention some important features of spm in cassandra?

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How does Cassandra delete data?

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What is the use of cassandra cql collection?

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