In a grayscale image, what color are pixels with a brightness value of 255?

You are reading a report that shows Company A generated $2,000 last week. This would be ________

A) knowledge B) a competitive advantage C) data D) information

Digital certificates can be used for each of these EXCEPT _____.

A. to verify the authenticity of the Registration Authorizer B. to encrypt channels to provide secure communication between clients and servers C. to verify the identity of clients and servers on the Web D. to encrypt messages for secure email communications