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# WAAccessCategory.background

A quality-of-service (QoS) type that provides high throughput for delay-tolerant, noninteractive data transfers of any size.

```
case background
```

## Discussion

Use this Wi-Fi access category for background data transfers, to prevent background traffic from interfering with other higher-priority flows, and for
packets transmitted by a `NetworkConnection` that you set with NWParameter’s `serviceClass = .background`.

For more information, refer to
[NWParameters.ServiceClass.background](https://developer.apple.com/documentation/network/nwparameters/serviceclass-swift.enum/background)

---

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