Distributed Databases Questions
Data security in a distributed database refers to the measures and mechanisms put in place to protect the data from unauthorized access, modification, or destruction. It involves implementing authentication, authorization, encryption, and other security protocols to ensure the confidentiality, integrity, and availability of the data.
Consistency in a distributed database refers to the property that ensures all copies of the data across different nodes in the distributed system are synchronized and up-to-date. It guarantees that any read operation on the database will always return the most recent and accurate data. Achieving consistency in a distributed database often involves implementing protocols such as two-phase commit, consensus algorithms, or conflict resolution mechanisms to handle concurrent updates and maintain data consistency across multiple nodes.