Which of the following statements about arrays are true?
A. An array is a group of variables containing values that all have the same type.
B. Elements are located by index.
C. The length of an array c is determined by the expression c.length();.
D. The zeroth element of array c is specified by c[0].
a. A, C, D.
b. A, B, D.
c. C, D.
d. A, B, C, D.
b. A, B, D.
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Is the following string a prefix expression? +–/ abc * + def *gh
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Through ____ and monitors, an experienced security professional can identify a potential attack.
A. galleries B. displays C. screens D. logs
Every attribute in an XML element must have a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).