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- Professional Certification Apache Cassandra(Datastax) : Total 207 Questions : Highest number of Questions : 95% Questions with explanations
Question 8: Which of the following is, A Cassandra table-specific, in-memory data structure that resembles a write-back cache.
- Commit log
- Redo log
Correct Answer: 2
Explanation: A sequentially written commit log on each node captures write activity to ensure data durability. Data is then indexed and written to an in-memory structure, called a memtable, memtable which resembles a write-back cache.