For any column whose data type is CHAR, values must be enclosed in ____.

When pasting a range of cells, this cell needs to be selected in the paste area

A) Center cell B) Bottom right cell C) Top left cell

What communications technique can a hacker use to identity the product that is running on an open port facing the Internet?

a. Credentialed penetration test b. Banner grabbing c. Intrusive vulnerability scan d. Port scanning