C# Programming Exam: Trivia Quiz!
.
- 1.At most, a class can contain ____________ method(s).
- A.
0
- B.
1
- C.
2
- D.
Any number of
- 2.What is the most important reason for creating methods within a program?
- A.
Methods are easily reusable.
- B.
Because all methods must be stored in the same class, they are easy to find
- C.
The Main() method becomes more detailed.
- D.
All of these are true.
- 3.In C#, a method must include all of the following except a ___________ .
- A.
Return type
- B.
Parameter list
- C.
Body
- D.
Closing brace
- 4.A method declaration might contain ____________ .
- A.
Declared accessibility
- B.
A nonstatic modifier
- C.
Multiple return types
- D.
Parameters separated by dots
- 5.A method declaration must contain _______________ .
- A.
A statement of purpose
- B.
Declared accessibility
- C.
The static modifier
- D.
A return type (even void) a return type (even void)
- 6.If you want to create a method that other methods can access without limitations, you declare the method to be _____________.
- A.
Unlimited
- B.
Static or static public
- C.
Shared
- D.
Unrestricted
- 7.If you use the keyword modifier static in a method header, you indicate that the method ______________.
- A.
Can be called without referring to an object or class
- B.
Cannot be copied
- C.
Can be called only once
- D.
Cannot require parameters
- 8.A method’s type is also its ____________ .
- A.
Accessibility
- B.
Parameter type
- C.
Return type
- D.
Scope
- 9.When you use a method, you do not need to know how it operates internally. This feature is called _____________
- A.
Scope management
- B.
Selective ignorance
- C.
Privacy
- D.
Implementation hiding
- 10.When you write the method declaration for a method that can receive a parameter, you need to include all of the following items except __________ .
- A.
A pair of parentheses
- B.
The type of the parameter
- C.
A local name for the parameter
- D.
An initial value for the parameter
- 11.Suppose you have declared a variable as int myAge = 21;. Which of the following is a legal call to a method with the declaration static public void AMethod(int num)
- A.
AMethod(int 55);
- B.
AMethod(myAge);
- C.
AMethod(int myAge);
- D.
AMethod(int myAge);
- 12.Suppose you have declared a method static public void CalculatePay(double rate) When a method calls the CalculatePay() method, the calling method ______________ .
- A.
Must contain a declared double named rate
- B.
Might contain a declared double named rate
- C.
Cannot contain a declared double named rate
- D.
Cannot contain any declared double variables
- 13.In the method call PrintTheData(double salary); salary is the ______________ parameter.
- A.
Formal
- B.
Actual
- C.
Propsed
- D.
Preferred
- 14.A program contains the method call PrintTheData(salary);In the method declaration, the name of the formal parameter must be __________ .
- A.
Salary
- B.
Any legal identifier other than salary
- C.
Any legal identifier
- D.
Omitted
- 15.What is a correct declaration for a method that receives two double arguments and calculates the difference between them?
- A.
Static public void CalcDifference(double price1, price2)
- B.
Static public void CalcDifference(double price1, double price2)
- C.
Both of these are correct.
- D.
None of these are correct.
- 16.What is a correct declaration for a method that receives two double arguments and sums them?
- A.
Static public void CalcSum(double firstValue, double secondValue)
- B.
Static public void CalcSum(double price1, double price2)
- C.
Both of these are correct.
- D.
None of these are correct.
- 17.A method is declared as public static double CalcPay(int hoursWorked) Suppose you write a Main() method in the same class that contains the declarations int hours = 35; double pay; Which of the following represents a correct way to call the CalcPay() method from the Main() method?
- A.
Hours = CalcPay();
- B.
Hours = Main.CalcPay();
- C.
Pay = CalcPay(hoursWorked);
- D.
Pay = CalcPay(hours);
- 18.Suppose the value of boolean method: isRateOK() = true and the value of boolean method isQuantityOK() = false. When you evaluate the expression (isRateOK() || isQuantityOK()), which of the following is true?
- A.
Only the method isRateOK() executes.
- B.
Only the method isQuantityOK() executes.
- C.
Both methods execute.
- D.
Neither method executes.
- 19.Suppose the value of boolean method isRateOK() = true and the value of boolean method isQuantityOK() = false. When you evaluate the expression (isRateOK() && isQuantityOK()) which of the following is true?
- A.
Only the method isRateOK() executes.
- B.
Only the method isQuantityOK() executes.
- C.
Both methods execute.
- D.
Neither method executes.
- 20.When an array is passed to a method, the method has access to the array’s memory address. This means an array is passed by ___________
- A.
Reference
- B.
Value
- C.
Alias
- D.
Orientation
- 21.A structure that allows repeated execution of a block of statements is a(n) __________________ .
- A.
Selection
- B.
Loop
- C.
Sequence
- D.
Array
- 22.The body of a while loop can consist of ______________
- A.
A single statement
- B.
A block of statements within curly braces
- C.
Either a or b
- D.
Neither a nor b neither a nor b neither a nor b neither a nor b
- 23.A loop that never ends is called a(n) ___________ loop.
- A.
While
- B.
For
- C.
Counted
- D.
Infinite
- 24.Which of the following is not required of a loop control variable in a correctly working loop?
- A.
It is initialized before the loop starts.
- B.
It is tested.
- C.
It is reset to its initial value before the loop ends.
- D.
It is altered in the loop body.
- 25.while loop with an empty body contains no ___________
- A.
Loop control variable
- B.
Statements
- C.
Curly braces
- D.
Test within the parentheses of the while statement
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