Which is the best method to know all the pins are connected to DUT/RTL

we are given a DUT/RTL thats has 1000 signals driven as input. As a verification engineer what approach do we need to choose
to just check all the 1000 signals are properly connected to the DUT. Thanks in advance for any reply.

In reply to Yash_wanth12345:

The basic answer to this basic question is you need to find out what “properly connected” means. Supposedly, every input has a purpose, otherwise it would not be there. So whether you have 10 inputs or 1000, you need go through the requirements of each input and make sure you have a test that verifies it.

There might be a deeper question behind this question. Where are these connections to your DUT coming from? If it is just connections from your testbench, then my answer stands. But if the connections are between independently verified DUTs, there are number of alternative methodologies.