If you visit a website and your browser notifies you that the certificate can't be verified, usually the cause of this is that . (1 point)
the certificate is expired
the certificate doesn't exist
there is no encryption on the website
the certificate server is unreachable

Stacy works as blank. the most important soft skill she needs for this role is blank.

Hazel has just finished adding pictures to her holiday newsletter. she decides to crop an image. what is cropping an image?

Suppose you are an ad-serving company and you maintain a log of cookie data for ads you serve to the web pages for a particular vendor (say amazon). a. how can you use this data to determine which are the best ads? b. how can you use this data to determine which are the best ad formats? c. how could you records of past ads and ad clicks to determine which ads to send to a given ip address? d. how could you use this data to determine how well the technique you used in your answer to part c was working? e. how could you use this data to determine that a given ip address is used by more than one person? f. how does having this data give you a competitive advantage vis-à-vis other ad-serving companies?