What is the method of deploying MongoDB in a distributed manner?

There are several methods for deploying MongoDB in a distributed manner.

1. Replica Set: A replica set is a collection of MongoDB instances, with one instance designated as the primary node and the others as secondary nodes. The primary node handles all write operations, while the secondary nodes replicate the data from the primary node. If the primary node fails, one of the secondary nodes will automatically be selected as the new primary node. Replica sets provide high availability and data redundancy.
2. Sharded Cluster: A sharded cluster is a cluster composed of multiple shards. Each shard stores a subset of the data and can be distributed across multiple physical servers. Data requests are routed to the corresponding shard through the routing process in the sharded cluster. Sharded clusters can horizontally scale to provide larger storage capacity and higher throughput.
3. Sharded Replica Set Hybrid architecture combines replica sets and sharded clusters to achieve higher availability and scalability. Each shard is a replica set with one instance as the primary node and others as secondary nodes. Multiple shards make up a sharded cluster, and data requests are routed to the appropriate sharded replica set.

These methods can be used to build a MongoDB distributed system according to requirements, providing high availability, scalability, and flexibility.