What is MongoDB data replication?
MongoDB data replication is the process of synchronizing data across multiple servers to ensure high availability and redundancy.
How does it work in MongoDB?
MongoDB uses a replica set, which is a group of MongoDB servers that maintain the same data set. One server is the primary, and the others are secondaries.
What happens if the primary server goes down?
If the primary server goes down, one of the secondary servers is automatically elected as the new primary, ensuring continuous availability.
Can I configure the replication settings?
Yes, you can configure various settings such as the write concern and read preference to control how replication behaves.
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