Cassandra Practice Test

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What is the maximum number of cells that is advised for a partition in Cassandra?

500 million cells
2 billion cells
1 billion cells
100 million cells

The correct answer is: 2 billion cells

In Cassandra, it is generally advised to keep the maximum number of cells in a single partition to around 2 billion. This recommendation is based on performance and operational considerations. While Cassandra can technically handle partitions larger than this, having too large a partition can lead to several issues, including slower read and write performance, increased garbage collection overhead, and complications in managing data distribution across the cluster. By adhering to the guideline of keeping partitions at or below 2 billion cells, developers can optimize performance and ensure that the system remains efficient and manageable. Other options suggest lower maximum cell limits, which do not reflect the capabilities of Cassandra as effectively as the 2 billion limit does. Balancing performance and capability is key to utilizing Cassandra's strengths in distributed data management.