C++ Quiz 4
- 1.What is the output of the following program fragment? cout << static_cast<double>(3)/4 << endl;
- A.
3
- B.
0.5
- C.
0
- D.
0.75
- 2.When parameters are passed between the calling code and the called function, parameters and arguments are matched by:
- A.
Their data types
- B.
Their relative positions in the parameter and argument lists
- C.
Their names
- D.
They are not matched up at all.
- 3.If you have the two functions as shown, int someFunction(int value); float someFunction(float value); and a variable x, which is a double, which function is called by the following statement? cout << someFunction(x);
- A.
Void someFunction(int value);
- B.
Void someFunction(float value);
- C.
Nothing, it is a syntax error
- D.
Both functions are called
- 4.Which of the following are valid function calls to the fabs function?
- A.
Fabs(3.5);
- B.
Cout
- C.
Cin >> fabs(3.5);
- D.
Fabs(cin >> x);
- E.
Fabs(3.5); and cout > fabs(3.5);
- F.
Fabs(3.5); and cout
- 5.The functions pow(), sqrt(), and fabs() are found in which include file?
- A.
Cstdlib
- B.
Cmath
- C.
Iostream
- D.
Regular
- 6.The expression static_cast<double>(3) is called a
- A.
Type cast
- B.
Multiplier
- C.
Doubler
- D.
Polymorphism
- 7.If the variable x has the original value of 3.4, what is the value in x after the following? cout << static_cast<int>(x);
- A.
3.4
- B.
4
- C.
Unknown
- D.
3
- 8.What is the value of the following? sqrt(sqrt(pow(2,4)));
- A.
1
- B.
2
- C.
4
- D.
16
- 9.Using functions in a program is known as
- A.
Data abstraction
- B.
Procedural abstraction
- C.
Poor programming style
- D.
Calculus
- 10.Which of the following are valid function calls to the pow function?
- A.
Pow(int x, int y);
- B.
Pow(2);
- C.
Pow(1.1,3.0);
- D.
Double pow(1.1,3.0);
- 11.If you have the following variable declaration in your program, const int SIZE=34; then which of the following statements are legal?
- A.
SIZE ++;
- B.
X = SIZE--;
- C.
Cout
- D.
Cin >> SIZE;
- 12.Which of the following functions is a properly overloaded function of the following? int doSomething(int first, float second);
- A.
Float doSomething(int first, float second);
- B.
Int doSomething( int next, float last);
- C.
Int doSomething(int first, int second, float third);
- D.
Int doSome(int first, float second);
- 13.Which of the following are not legal function declarations?
- A.
Int ave3(int a, int b, int c);
- B.
Int 3ave(int a, int b, int c);
- C.
Int ave3(int, int, int);
- D.
Int ave_3(int a1, int a2, int a3);
- 14.Information Hiding is analogous to using
- A.
An algorithmic design
- B.
A black-box methodology
- C.
Formal parameters
- D.
Actual parameters
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