We can say the implied argument goes as follows:
1. Qualified applicants know X.
2. You do not know X.
3. Therefore, you are not a qualified applicant.
Your claim is that premise #1 is not true. This might be the case, or it might not. This reminds me of the famous anecdote of Henry Ford who was given a hard time about his lack of schooling and general knowledge. To one lawyer he responded,
If I should really WANT to answer the foolish question you have just asked, or any of the other questions you have been asking me, let me remind you that I have a row of electric push-buttons on my desk, and by pushing the right button, I can summon to my aid men who can answer ANY question I desire to ask concerning the business to which I am devoting most of my efforts. Now, will you kindly tell me, WHY I should clutter up my mind with general knowledge, for the purpose of being able to answer questions, when I have men around me who can supply any knowledge I require?
Today, we can substitute "a row of electric push-buttons" with "Google."