7) Which of the following lines of code defines an array of C-strings that will hold 49 characters and the null terminator?

A) char [49];

B) char str[50];

C) char[50] str;

D) character str[50];

E) None of the above

8) The statement:

char var1 = tolower('A');

will result in:

A) var1 storing the character value 'A'.

B) var1 storing the ASCII value for lower case 'a'.

C) A is output to the monitor.

D) a is output to the monitor.

E) None of these

9) To change a character argument from lower to upper case, use this function.

A) isupper

B) toupper

C) tolarge

D) fromlower

E) None of these

10) What is the output of the following statement?

cout << tolower(toupper('Z')) << endl;

A) upper case Z

B) lower case z

C) a lower case z followed by an upper case Z

D) a compiler error

E) None of these

11) If Circle is a structure tag, the statement:

Circle doSomething(Circle c2)

can be the header line for a function that ________.

A) determines and returns the area of a circle

B) takes a Circle structure as a parameter, does something, and returns a Circle structure

C) operates on a constant reference to a Circle structure

D) takes two Circle parameters and does something

E) None of these