At work or school, you need to be honest and understand your limitations -- the people who have authority over you will appreciate and respect it. It can be tough on your ego to admit that you can't do something, but it is the only way to start learning a skill or piece of information that you lack. Get a better perspective on your place in this organization and understand that you are more valuable the more you actually know. If you keep learning, that is.
*DISCLAIMER*: The information contained in or provided through this site section is intended for general consumer understanding and education only and is not intended to be and is not a substitute for professional advice. Use of this site section and any information contained on or provided through this site section is at your own risk and any information contained on or provided through this site section is provided on an "as is" basis without any representations or warranties.