In distributed databases, data replication and ____________ are strategies to enhance data availability and fault tolerance.
- Fragmentation
- Indexing
- Repartitioning
- Sharding
Data replication involves creating and maintaining multiple copies of data across different nodes in a distributed database. This strategy improves data availability and fault tolerance by ensuring that data remains accessible even if one or more nodes fail. Fragmentation, on the other hand, refers to breaking down a database into smaller parts for various purposes, such as distribution or optimization.
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