Explain the difference between a Leader-Follower and Multi-Leader replication.

Explain the difference between a Leader-Follower and Multi-Leader replication.

Approach: Compare write authority across nodes.

In Leader-Follower, only one node accepts writes and others replicate them. In Multi-Leader, multiple nodes can accept writes, requiring conflict resolution strategies.

Follow-up: Which is more complex to implement?

Key concepts: read replicas, write conflicts.