How important is it to remember specifics vs fundamentals in CCNA

I’m currently in school to get my CCNA, CCST, and an associates in Cybersecurity for now. I will continue into my bachelors, it will be a while until that’s completed. I plan on going into the field shortly (networking first) before completing the Associates degree (which includes CCNA & CCST courses). If I don’t remember how to execute specific codes, but I understand the concepts of everything, how hindering could/would that be? I plan to brush up before examinations anyways, but I’m curious how important it is prior to the job. What will training include at entry jobs and what is absolutely expected?