The only way to have prepared was as if it were a certification test.
Technical skills are very important in most of the positions currently available in our industry.
Therefore it's obviously necessary for hiring officials to ask technical questions during the interview in order of get an understanding of how closely the candidate's skills meet their needs. But interviewers must keep in mind that it isn't possible for anyone to know everything about anything. People who have been in the technical side of our business for only a short time quickly learn that the best they can hope for is to understand the basics. The specifics, especially the more obscure technical issues, can be researched and relearned as needed if you know the big picture. I think it would be a big mistake to base any significant part of a hiring decision on a person's ability to recall a minute technical detail during a job interview.