Functions problems
- 1. Which of the following statement is incorrect?
Options- A. Default arguments can be provided for pointers to functions.
- B. A function can have all its arguments as default.
- C. Default argument cannot be provided for pointers to functions.
- D. A default argument cannot be redefined in later declaration. Discuss
Correct Answer: Default argument cannot be provided for pointers to functions.
- 2. Which of the following statement is correct?
Options- A. The default value for an argument cannot be function call.
- B. C++ allows the redefinition of a default parameter.
- C. Both A and B.
- D. C++ does not allow the redefinition of a default parameter. Discuss
Correct Answer: C++ does not allow the redefinition of a default parameter.
- 3. Which of the following function declaration is/are incorrect?
Options- A. int Sum(int a, int b = 2, int c = 3);
- B. int Sum(int a = 5, int b);
- C. int Sum(int a = 0, int b, int c = 3);
- D. Both B and C are incorrect.
- E. All are correct. Discuss
Correct Answer: Both B and C are incorrect.
- 4. Which of the following statement is correct?
Options- A. The order of the default argument will be right to left.
- B. The order of the default argument will be left to right.
- C. The order of the default argument will be alternate.
- D. The order of the default argument will be random. Discuss
Correct Answer: The order of the default argument will be right to left.
- 5. Which of the following function / type of function cannot be overloaded?
Options- A. Member function
- B. Static function
- C. Virtual function
- D. Both B and C Discuss
Correct Answer: Virtual function
- 6. Which of the following statement is correct?
Options- A. Overloaded functions can accept same number of arguments.
- B. Overloaded functions always return value of same data type.
- C. Overloaded functions can accept only same number and same type of arguments.
- D. Overloaded functions can accept only different number and different type of arguments. Discuss
Correct Answer: Overloaded functions can accept same number of arguments.
- 7. Which of the following statement is incorrect?
Options- A. A default argument is checked for type at the time of declaration and evaluated at the time of call.
- B. We can provide a default value to a particular argument in the middle of an argument list.
- C. We cannot provide a default value to a particular argument in the middle of an argument list.
- D. Default arguments are useful in situations where some arguments always have the same value. Discuss
Correct Answer: We can provide a default value to a particular argument in the middle of an argument list.
- 8. Which of the following statement is correct?
Options- A. Only one parameter of a function can be a default parameter.
- B. Minimum one parameter of a function must be a default parameter.
- C. All the parameters of a function can be default parameters.
- D. No parameter of a function can be default. Discuss
Correct Answer: All the parameters of a function can be default parameters.
- 9. Which of the following statement is correct?
Options- A. Two functions having same number of argument, order and type of argument can be overloaded if both functions do not have any default argument.
- B. Overloaded function must have default arguments.
- C. Overloaded function must have default arguments starting from the left of argument list.
- D. A function can be overloaded more than once. Discuss
Correct Answer: A function can be overloaded more than once.
- 10. Which of the following statement will be correct if the function has three arguments passed to it?
Options- A. The trailing argument will be the default argument.
- B. The first argument will be the default argument.
- C. The middle argument will be the default argument.
- D. All the argument will be the default argument. Discuss
Correct Answer: The trailing argument will be the default argument.
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