When users create, alter, or drop tables or create or drop indexes, the dbms updates the system catalog automatically.?

Which number on the image above correctly indicates the name of a folder in this url? a.1b.2c.3d.4

Imagine that you have a friend who is starting a small business and is interested in using social media to spread the word. he is not certain that it is a good move, and has come to you for . would you advise him to use social media to advertise his business? why or why not? support you answer with information from the text.

Plz 40 points what are raster vectors? a bitmap image a vector file a type of printing press a small projector