The ____ is often used as a statistic in many cases because it represents a more typical case.
A. mode
B. mean
C. average
D. median
Answer: D
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Which of the following creates the string of the numbers from 1 to 1000 most efficiently?
a. ``` String s; for (int i = 1; i <= 1000; i++) s += i; ``` b. ``` StringBuilder sb = new StringBuilder(10); for (int i = 1; i <= 1000; i++) sb.append(i); String s = new String(sb); ``` c. ``` StringBuilder sb = new StringBuilder(3000); for (int i = 1; i <= 1000; i++) sb.append(i); String s = new String(sb); ``` d. All are equivalently efficient.
The device that allows two different networks to communicate with one another is:
A. a repeater B. a hub C. a router D. an access point
Functions in an ADT can be public and private.
Answer the following statement true (T) or false (F)
Automatic Updates
A. Only Windows XP B. Windows XP and Vista C. Windows Vista and 7