Binary numbers

Question

I came across this challenge online, and after trying everything i could think of i could not solve it. I'm hoping someone on here might have some useful suggestions for me.
The problem is as follows:
There is a lock with 2 binary numbers one on top of another:
0101101001
1101101101
The answer is a binary number as well, with a length of 10, what is the answer?
_ _ _ _ _ _ _ _ _ _

Answer 1

It looks like it might be about bitwise operations, but some information is missing.
https://www.sololearn.com/learn/4070/?ref=app
I played around a bit; if you use the operator & on the binary numbers, you get 361, which is 19*19 and the numbers of points on a go board. ;-)

Answer 2

I ended up solving it, it was to do with XOR

Answer 3

Thank you everyone for your contributions