1. In vi, you differentiate between editing commands and input characters by a. b. c. d. e. Specialized control characters like control+d to delete Specialized escape characters like escape+d to delete A combination of control and escape characters Having different modes, a command mode, an insert mode and a replace mode Through the GUI 2. Which vi command is used to delete the entire line in which the cursor currently lies? a. b. db d. dw 3. In vi, you have copied an entire line into the buffer and wish to paste it into place below the current line. Which of these keystrokes would you use? b. p c. controlty d. J 4. In vi, which of these keys moves you from insert mode to command mode? a. i c. O d. any of i, I,0,0 e.