Here https://github.com/apple/device-management/blobelease/mdm/commands/information.device.yaml#L3246 it is mentioned that for querying Managed attestation certificate the ios device needs to have A11 Bionic and later, Wanted to understand how to get this information programmatically i.e is Apple sending chip information for iphone and ipad devices as part of some sample ? or is there a way to query this information from the device ? Here https://github.com/apple/device-management/blobelease/mdm/commands/information.device.yaml#L3246 it is mentioned that for querying Managed attestation certificate the macos device needs to have Apple Silicon, using IsAppleSilicon https://github.com/apple/device-management/blobelease/mdm/commands/information.device.yaml#L357 property is fine ? Can we use this field to determine if the device is Apple silicon ? Same question for Apple TV as well - How to get the information if a device is having A12 Bionic and later ? and same for Apple watch, how to know if a device is S4 and later ?

When a DeviceInformation command along with ManagedAttestion data in the query along with a new nonce and after 7 days last time we queried for fresh certificate, is there a possibility that a) we will get a DeviceInformation response without a Managed attestion certificte. OR b) We will get a cached certificate Also, what's the average increase in expected response time when we query Managed attestation certificate in DeviceInformation.