Cassandra Practice Test

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Prepare efficiently for the Cassandra Test. Study with comprehensive quizzes and real-world scenarios. Test your understanding with multiple-choice questions and detailed explanations. Get ready for a successful exam!

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What is the best size for a node in Cassandra?

1-2 terabytes
4-10 terabytes
2-4 terabytes
10-20 terabytes

The correct answer is: 2-4 terabytes

The size of a node in Cassandra is typically best maintained in the range of 2-4 terabytes. This size allows for a balance between performance, manageability, and efficient resource use. Having nodes of this size helps to ensure that they can be easily backed up and restored, while also facilitating better performance due to reduced contention for resources. When nodes are too large (beyond 4 terabytes), issues can arise with increased garbage collection times, longer repair durations, and a potential increase in latency when responding to requests. Nodes smaller than 2 terabytes may lead to inefficient hardware utilization, not taking full advantage of the disk space available. Overall, the 2-4 terabyte node size is often considered optimal for Cassandra clusters, enabling the system to perform reliably while being manageable in terms of both maintenance tasks and operational overheads.