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Point out the correct statement.

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Point out the correct statement.

(a) Cassandra accommodates expensive, consumer SSDs extremely well

(b) Cassandra re-writes or re-reads existing data, and never overwrites the rows in place

(c) Cassandra uses a storage structure similar to a Log-Structured Merge Tree

(d) None of the mentioned

This question was addressed to me in an online interview.

I want to ask this question from Cassandra with Hadoop in division ZooKeeper, Sqoop and Cassandra of Hadoop

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The correct option is (c) Cassandra uses a storage structure similar to a Log-Structured Merge Tree

Easiest explanation: A log-structured engine that avoids overwrites and uses sequential IO to update data is essential for writing to hard disks (HDD) and solid-state disks (SSD).

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