# Data Distribution Mechanism

Dang CDN System uses 2 data distribution methods: PULL for input data, and PUSH for output data.

Detail:

* [PULL](https://docs.vngcloud.vn/vng-cloud-document/vcdn/tong-quan/overview-architecture/co-che-phan-phoi-du-lieu/phuong-phap-pull)
* [PUSH](https://docs.vngcloud.vn/vng-cloud-document/vcdn/tong-quan/overview-architecture/co-che-phan-phoi-du-lieu/phuong-phap-push)