When the increment operator precedes its operand, as ++num, the expression is in __________ mode.
a. postfix
b. prefix
c. preliminary
d. binary
e. None of these
b. prefix
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Every JComponent has an instance variable called that enables the object to maintain references to all its registered listeners.
a. registeredListenerList b. listenerList c. registeredList d. eventListenerList
What does the author say he’s stopped doing when delivering his findings to clients?
a. Doing a live presentation b. Writing a lengthy report c. Suggesting improvements
Which of the following commands can Lisa, a network technician, use to check whether the DNS server for a given domain is reachable?
A. nmap B. nbtstat C. dig D. arp
Why is practice so important when preparing a presentation? Provide a specific example from your own experience.
What will be an ideal response?