C++ coding multiple choice exam

In C++, the variables total and ToTaL are NOT considered to be the same variable.

A) True B) False

The body of a while loop is only executed if the loop condition is false.

A) True B) False

Pseudocode is considered a “high level” programming language.

A) True B) False

An expression containing the operator && is true only if both its operands are true.

A) True B) False

else if statements are tested sequentially until a match occurs.

A) True B) False

Questions 6 – 15 are Multiple Choice and worth 1 point each.

Which of the following is a valid constant declaration?

A) const FRED int = 5; B) int const FRED = 5; C) int FRED const = 5; D) const int FRED = 5; E) FRED const int = 5;

const, while, if, and int are examples of:

A) reserved (key) words B) identifiers C) variables D) compiler directives E) program comments

Which of the following is a valid C++ assignment statement?

A) x = q – (y * z); B) y + z = x; C) y = b * c D) x = (x + (y z); E) x = a b;

The formula:

can be represented in C++ as:

A) x = a – b / c – d; B) x = a – b / (c – d); C) x = (a – b) / (c – d); D) x = (a – b) / c – d; E) (a – b) / (c – d) = x;

Which of the following is a valid variable name?

A) 2ndName B) %Last_Name C) year03 D) @Month E) #55

Which library must be included to enable keyboard input?

A) iomanip B) cstdlib C) input D) iostream E) kbdin

Which of the following is an invalid variable name?

A) Part time B) part_time C) full_time_job D) FullTime E) _Parttime

Which library must be included to enable formatted output?

A) output B) scrnout C) format D) cstdlib E) iomanip

Which of the following is an invalid variable name?

A) _64 B) 64_ C) Sum_ D) _S_u_m_ E) _Sum

What is the comment section at the beginning of a program that gives information about the author and the program called?

A) prologue B) prelude C) heading D) preliminaries E) foreword

Questions 16 – 19 are Matching and worth 1 point each.

A. sentinel          B. running total          C. cin          D. condition          E. counter

A __________ is evaluated to true or false each time an if statement is encountered in code.

A) sentinel B) running total C) cin D) condition E) counter

A while loop that is controlled by the user ends with a __________ value.

A) sentinel B) running total C) cin D) condition E) counter

A while loop that runs a pre-determined number of times is controlled by a __________.

A) sentinel B) running total C) cin D) condition E) counter

A variable that accumulates the sum of numbers entered by the user is accumulating a __________.

A) sentinel B) running total C) cin D) condition E) counter

For Questions 20 – 24, determine the logical value of the comparison. Mark A for True and B for False.

Assume that a=10, b=6, c=10, and d=8.

a == b

A) True B) False

c < d

A) True B) False

c == a

A) True B) False

a >= c || b >= d

A) True B) False

(c < b && d < b) || (a != c)

A) True B) False

Trace through the following Code:

for (i = 3; i <= 6; i++) {            cout << "*"; }

A) * B) ** C) *** D) **** E) 3 4 5 6

Consider the following code for Questions 26 and 27:

int count = 10;

int num = 4;

do

{

      if ((count % 2) == 1)

      {

           num += 3;

      }

      else

      {

           num -= 2;

      }

      count--;

}

while (count > 5);

What is the value of count after the following code is executed? This question is worth 2 points.

A) 1 B) 10 C) 5 D) 4 E) 2

What is the value of num after the following code is executed? This question is worth 2 points.

A) 1 B) 10 C) 5 D) 4 E) 2

For Questions 28 – 30, determine the result of each expression.

3 * 3 + 3 / 3 – 3 % 3

A) 0 B) 10 C) 1 D) 4 E) 3

6 * (8 – 12 / 2) + 9 / 3

A) 1 B) 10 C) 5 D) 4 E) 15

(8 – 3) % 2 + 12 / 4

A) 1 B) 10 C) 5 D) 4 E) 15