Q: Ipad

I would presume because it is locked to another person's Apple ID. Is this a used device you just purchased? If so:

It requires the Apple ID and password of the previous owner. If you don't have it and cannot get it, then the device is useless to you. Return it for a refund if you can.

Find My iPhone Activation Lock

In the future check first before buying second hand: How to check for Activation Lock before buying a used iPhone.

Is it asking for a different Apple ID from yours?