OOPS Concepts problems
- 1. Which of the following is the correct class of the object cout?
Options- A. iostream
- B. istream
- C. ostream
- D. ifstream Discuss
Correct Answer: ostream
- 2. Which one of the following is correct about the statements given below?
- All function calls are resolved at compile-time in Procedure Oriented Programming.
- All function calls are resolved at compile-time in OOPS.
Options- A. Only II is correct.
- B. Both I and II are correct.
- C. Only I is correct.
- D. Both I and II are incorrect. Discuss
Correct Answer: Only I is correct.
- 3. Which of the following is correct about class and structure?
Options- A. class can have member functions while structure cannot.
- B. class data members are public by default while that of structure are private.
- C. Pointer to structure or classes cannot be declared.
- D. class data members are private by default while that of structure are public by default. Discuss
Correct Answer: class data members are private by default while that of structure are public by default.
- 4. Which of the following concepts of OOPS means exposing only necessary information to client?
Options- A. Encapsulation
- B. Abstraction
- C. Data hiding
- D. Data binding Discuss
Correct Answer: Data hiding
- 5. Which of the following statements is correct in C++?
Options- A. Classes cannot have data as protected members.
- B. Structures can have functions as members.
- C. Class members are public by default.
- D. Structure members are private by default. Discuss
Correct Answer: Structures can have functions as members.
- 6. Which of the following is not a type of inheritance?
Options- A. Multiple
- B. Multilevel
- C. Distributive
- D. Hierarchical Discuss
Correct Answer: Distributive
- 7. Which of the following is the correct way of declaring a function as constant?
Options- A. const int ShowData(void) { /* statements */ }
- B. int const ShowData(void) { /* statements */ }
- C. int ShowData(void) const { /* statements */ }
- D. Both A and B Discuss
Correct Answer: int ShowData(void) const { /* statements */ }
- 8. How many instances of an abstract class can be created?
Options- A. 1
- B. 5
- C. 13
- D. 0 Discuss
Correct Answer: 0
- 9. Which of the following cannot be friend?
Options- A. Function
- B. Class
- C. Object
- D. Operator function Discuss
Correct Answer: Object
- 10. Which of the following problem causes an exception?
Options- A. Missing semicolon in statement in main().
- B. A problem in calling function.
- C. A syntax error.
- D. A run-time error. Discuss
Correct Answer: A run-time error.
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