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WithoutBook LIVE Mock Interviews Cassandra Related interview subjects: 24

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Know the top Cassandra interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Know the top Cassandra interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Freshers / Beginner level questions & answers

Ques 1

What is Apache Cassandra?

Apache Cassandra is a highly scalable and distributed NoSQL database system designed to handle large amounts of data across multiple commodity servers without a single point of failure.
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Ques 2

What is a key space in Cassandra?

A key space in Cassandra is a namespace that defines data replication on nodes. It is the outermost container for data, similar to a database in the relational database world.
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Ques 5

What is a Cassandra data center?

A Cassandra data center is a logical grouping of nodes that are geographically close to each other. Data centers are used for replication and fault tolerance purposes.
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Ques 6

How does Cassandra ensure fault tolerance?

Cassandra achieves fault tolerance through data replication. Each piece of data is replicated across multiple nodes in the cluster, ensuring that if a node fails, the data is still available on other nodes.
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Ques 7

What is the purpose of the nodetool utility in Cassandra?

Nodetool is a command-line utility in Cassandra that provides various administrative tasks, such as monitoring the cluster, managing compaction, and performing other maintenance operations.
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Ques 8

What is the CQL (Cassandra Query Language)?

CQL is a query language for interacting with Cassandra databases. It is similar to SQL but is specifically designed for NoSQL databases and includes support for creating, updating, and querying data in Cassandra.
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