Distributed Databases Questions
Data security in a distributed database refers to the measures and techniques implemented to protect the data stored in the database from unauthorized access, modification, or destruction. It involves ensuring confidentiality, integrity, and availability of the data by implementing various security mechanisms such as access controls, encryption, authentication, and auditing.
Replication in a distributed database refers to the process of creating and maintaining multiple copies of the database across different nodes or sites within the distributed system. These copies, known as replicas, are synchronized to ensure consistency and availability of data. Replication provides benefits such as improved data availability, fault tolerance, and scalability. It allows for local access to data, reducing network latency and improving performance. Additionally, replication can also enhance data durability by ensuring that data is stored redundantly in case of failures or disasters.