Cisco Software Engineer interview questions

With the senior software engineer, I solved DFS search coding question during the phone call. I was allowed to ask some questions about the problem or basic functions. Need to explain the way I would solve it.

I got the online assessment for cisco software developer 1 role. there were 3 coding question and 90 mins of time. the first one was pretty simple and could be done in 10 mins of time. the third one was a hard LC problem but solvable since there was lot of time