CORRECT TEXT
In the vi editor, what vi command will copy (but not paste) from the current line at the cursor and
the following 16 lines (17 lines total)? Enter the correct vi command without spaces. (Please enter
only a single answer.)
Answer: 17Y,17Y,17YY,17YY
17yy – COPY BUT NOT PASTE IS TO YANK
The yy command works well with a count: to yank 11 lines, for example, just type 11yy. Eleven lines, counting down from the cursor, will be yanked, and vi indicates this with a message at the bottom of the screen: 11 lines yanked.
http://docs.oracle.com/cd/E19455-01/806-2902/editorvi-53/index.html
Yes, you are right.