Cassandra Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

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What can be an outcome of poor compaction strategies in a Cassandra database?

Improved data retention

Reduced write amplification

Increased storage space usage

The outcome of poor compaction strategies in a Cassandra database significantly impacts storage efficiency. When compaction strategies are not effectively implemented, it can lead to increased storage space usage. This situation arises because improper compaction means that tombstones, duplicate data, and obsolete data are not efficiently cleaned up. As a result, the total volume of data grows unnecessarily, consuming more disk space.

In addition, poor compaction can leave behind many partitions with outdated or marked-for-deletion data. This situation can lead to further inefficiencies, making it harder for the system to manage storage effectively and increasing the likelihood of performance issues during reads.

Therefore, understanding and implementing proper compaction strategies is crucial for optimizing storage use in Cassandra.

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