Cisco Software Engineer I interview questions

Talked a little about myself and current projects. He then asked me to code up factorial. I did it recursively, he then asked me to do it iteratively. I coded it up perfect, and he said that was all the coding i needed to do. Not sure why they didnt ask me harder questions, especially since i did it perfectly and didnt get an offer. I was one of the first interviews of the day, so i think he may have under estimated the level or interviews he was giving or something.