Perguntas de entrevista de vagas de UI Developer da empresa All Generation Tech

They gave me a html layout to design for both pc and mobile(responsive) using scss. Then they asked some questions about css,scss,html and javascript. Problem is I got nervous and missed some easy questions to answers. I am frustrated now. This was a very easy interview and I blew it. They asked about responsive design, scss, js promises, synchronous asynchronous function etc.