Which iptables command would list all rules including line numbers that specify each rule’s position in the chain?
What will be an ideal response?
$ su -c 'iptables -L --line-numbers'
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If a function is called more than once in a program, the values stored in the function's local variables do not _________ between function calls.
a. persist b. execute c. communicate d. change e. None of these
The default implementation of method clone of Object performs a ________.
a. empty copy. b. deep copy. c. full copy. d. shallow copy.
Modify the quiz program (page 508) so that the choices for a question are randomly arranged.
What will be an ideal response?
Using layout managers ________.
a. provides the greatest level of control over a GUI’s appearance b. can be faster than creating a GUI with absolute positioning c. allows the programmer to specify the exact location of each GUI component with respect to the upper-left corner of the Container d. allows the programmer to specify the exact location of each GUI component with respect to the lower-left corner of the Container