51. The programming language feature that allows the same operation to be carried out differently depending on the object is
Answer: polymorphism
Explanation:Here is no explanation for this answer
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52. Compared with the classes from which they are derived, inherited classes may have
Answer: none of these
Explanation:Here is no explanation for this answer
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53. Which of the following advantages we lose by using multiple inheritance?
Answer: Both a & b
Explanation:The benefit of dynamic binding and polymorphism is that they help making the code easier to extend but by multiple inheritance it makes harder to track.
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54. What does derived class does not inherit from the base class?
Answer: All of the above
Explanation:The derived class inherit everything from the base class except the given things.
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55. Which design patterns benefit from the multiple inheritance?
Answer: Adapter and observer pattern
Explanation:Here is no explanation for this answer
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56. Which of the following statements are true?
(I). Constructors can be vitrual.
(II). Constructors can be vitrual. Codes:
Answer: Both are false
Explanation:Here is no explanation for this answer
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57. To ensure that every object in the array receives a destructor call, always delete memory allocated as an array with operator __________ .
Answer: delete[]
Explanation:Here is no explanation for this answer
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58. Which of the following implicitly creates a default constructor when the programmer does not explicitly define at least one constructor for a class?
Answer: Compiler
Explanation:Here is no explanation for this answer
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59. What happens when a class with parameterized constructors and having no default constructor is used in a program and we create an object that needs a zero-argument constructor?
Answer: Compile-time error.
Explanation:Here is no explanation for this answer
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60. How many types of constructor are there in C++?
Answer: 3
Explanation:There are three types of constructor in C++. They are Default constructor, Parameterized constructor, Copy constructor.
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