Explain how the push notification works in iOS operating system?
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Answer / Anu Tyagi
Push notifications in iOS are messages sent from a remote server to a device. The Apple Push Notification service (APNS) handles these messages. When an app is installed on a device, it's assigned a unique device token. The server sends the push notification to this token, and the APNS delivers the message to the device even if the app is not currently open.
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