Sysdiagnose is a tool that extracts information from iOS or iPadOS devices and captures it in a log file. You can use sysdiagnose to troubleshoot general issues or report them to AppleCare. To run sysdiagnose, you can either press and hold both volume buttons and the side or top button on iPad for 1 to 1.5 seconds, or use AssistiveTouch to select Analytics from the Top Level Menu. After sysdiagnose finishes, you can find the log file in Settings > Privacy & Security > Analytics & Improvements > Analytics Data. The log file name starts with "sysdiagnose" and includes the date and time of the capture. You can then transfer the log file to your Mac via AirDrop or USB. References: = Using Sysdiagnose to Troubleshoot iOS or iPadOS; Gathering a Sysdiagnose from an iPadOS or iOS device; Apple Device Support Exam Prep Guide, page 10.

Universal Control is a feature that allows you to use a single keyboard, mouse, or trackpad to control up to two other nearby Mac or iPad devices, and work seamlessly between them1. When using Universal Control, you can share the following peripherals between iPad and Mac:
* Trackpad: You can use the trackpad of your Mac or iPad to move the pointer across the screens of both devices. You can also use gestures to scroll, zoom, or switch between apps2.
* Keyboard: You can use the keyboard of your Mac or iPad to type on both devices. You can also use keyboard shortcuts to perform actions or access menus3.
* Mouse: You can use the mouse of your Mac to move the pointer across the screens of both devices. You can also use the mouse buttons to click or right-click4.
You cannot share the following peripherals between iPad and Mac when using Universal Control:
* Apple Pencil: You can only use the Apple Pencil on your iPad, not on your Mac. The Apple Pencil is designed to work with the touch screen of the iPad, not with the display of the Mac5.
* Touch ID: You can only use Touch ID on the device that has the Touch ID sensor, not on the other device. Touch ID is a biometric security feature that requires your fingerprint to unlock your device, make purchases, or use Apple Pay. References: = Universal Control: Use a single keyboard and mouse between Mac and iPad, Use gestures on your Mac trackpad, Mac keyboard shortcuts, Use a Bluetooth mouse or trackpad with your iPad, Use Apple Pencil with your iPad or iPad Pro, [Use Touch ID on your Mac]

Forgotten encrypted backup passwords can't be recovered.Reset All Settings(Settings > General > Transfer or Reset iPhone) clears the old backup password link, allowing a new encrypted backup with a new password on the same Mac.
* Option B: Different Mac isn't necessary.
* Option C: Network reset doesn't affect backups.
* Option D: Restarting doesn't clear the password.
* Option A: Correct-resets backup access.References: Apple Support - "If you forget your encrypted backup password" (support.apple.com/HT205220).