CIDR

I am looking for someone that can help me understand how to get to the answer, the correct answer they gave was /16 and my guess was /20 my thought process was that /22 has 1024 host and /21 has 2048 host 1024+2048=3072 so /20 having 4096 host is how i got my answer Based on networks...

Hi, here is a picture of my CWT 500W Power Supply: https://imgur.com/a/Tocb3 I have this PSU for 6 years already, and it has been working great with my GeForce GT520 GPU, But now I want to upgrade my GPU to GTX 1050Ti. I'm wondering if it would be good enough? I read that 500W should be...