how to answer technical interview questions you don't know?
['Calm down. First of all, the most important thing to do is stay calm. ... ', 'Don\'t say, "I don\'t know," off the bat. ... ', 'Ask questions. ... ', 'Tell your interviewer what you do know. ... ', 'Tell them how you would find the answer. ... ', 'Know the right time to come clean. ... ', 'Send a follow-up email.']