Which command illustrates how to obtain helpful documentation for the ls command?
A. man ls
B. help ls
C. doc ls
D. info ls
Answer: A
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Reworking programs to make them clearer and easier to maintain while preserving their correctness and functionality is called ________.
a. refactoring b. design patterns c. editing d. None of the above.
For noncontiguous selections from a selection list on a PC, press and hold the ____ key while you make your selections.
A. Ctrl B. Shift C. Esc D. Alt
When using the variable name as an index for the $GLOBALS array, you omit the leading dollar sign from the name.
Answer the following statement true (T) or false (F)
Identify themediarule that must be included in a Cascading Style Sheet (CSS) file so that media queries can be used to associate specific style rules with specific devices.?
A. ?#mediadevices{ style rules} B. ?&mediadevices{ style rules} C. ?@mediadevices{ style rules} D. ?*mediadevices{ style rules}