OOP · Inheritance & Polymorphism interview questions

1. A.a class deriving from exactly one base class
2. B.a per-class table of function pointers the runtime uses to dispatch virtual calls dynamically
3. C.binding resolved during execution through overridden virtual functions and dynamic dispatch
4. D.defining several methods with the same name but different parameter lists in one scope

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1. A.diamond problem
2. B.method overloading
3. C.multiple inheritance
4. D.single inheritance

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1. A.single inheritance — a class deriving from exactly one base class
2. B.single inheritance — binding resolved by the compiler, achieved through overloading and templates
3. C.single inheritance — a derived class redefining a base-class method with the same signature to change its behavior
4. D.single inheritance — a class deriving from more than one base class at the same time

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1. A.defining several methods with the same name but different parameter lists in one scope
2. B.several derived classes inheriting from a single common base class
3. C.a chain where a derived class itself becomes the base for a further derived class
4. D.a combination of two or more inheritance types, such as hierarchical plus multiple, in one design

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1. A.multiple inheritance
2. B.vtable
3. C.multilevel inheritance
4. D.compile-time polymorphism

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1. A.multilevel inheritance — a chain where a derived class itself becomes the base for a further derived class
2. B.multilevel inheritance — a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
3. C.multilevel inheritance — several derived classes inheriting from a single common base class
4. D.multilevel inheritance — a class deriving from exactly one base class

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1. A.several derived classes inheriting from a single common base class
2. B.a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
3. C.binding resolved by the compiler, achieved through overloading and templates
4. D.a class deriving from exactly one base class

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1. A.hierarchical inheritance
2. B.method overloading
3. C.method overriding
4. D.multiple inheritance

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1. A.hierarchical inheritance — several derived classes inheriting from a single common base class
2. B.hierarchical inheritance — a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
3. C.hierarchical inheritance — a derived class redefining a base-class method with the same signature to change its behavior
4. D.hierarchical inheritance — a class deriving from more than one base class at the same time

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1. A.an ambiguity in multiple inheritance where a class inherits the same base twice through two parents
2. B.binding resolved by the compiler, achieved through overloading and templates
3. C.a per-class table of function pointers the runtime uses to dispatch virtual calls dynamically
4. D.a class deriving from more than one base class at the same time

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1. A.multilevel inheritance
2. B.multiple inheritance
3. C.diamond problem
4. D.single inheritance

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1. A.multiple inheritance — a derived class redefining a base-class method with the same signature to change its behavior
2. B.multiple inheritance — a class deriving from exactly one base class
3. C.multiple inheritance — treating a derived-class object through a base-class pointer or reference
4. D.multiple inheritance — a class deriving from more than one base class at the same time

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1. A.defining several methods with the same name but different parameter lists in one scope
2. B.a class deriving from exactly one base class
3. C.a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
4. D.binding resolved during execution through overridden virtual functions and dynamic dispatch

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1. A.upcasting
2. B.method overloading
3. C.multilevel inheritance
4. D.hybrid inheritance

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1. A.method overloading — a per-class table of function pointers the runtime uses to dispatch virtual calls dynamically
2. B.method overloading — a chain where a derived class itself becomes the base for a further derived class
3. C.method overloading — treating a derived-class object through a base-class pointer or reference
4. D.method overloading — defining several methods with the same name but different parameter lists in one scope

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1. A.defining several methods with the same name but different parameter lists in one scope
2. B.a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
3. C.a derived class redefining a base-class method with the same signature to change its behavior
4. D.an ambiguity in multiple inheritance where a class inherits the same base twice through two parents

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1. A.run-time polymorphism
2. B.method overloading
3. C.upcasting
4. D.method overriding

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1. A.method overriding — a base-class method declared virtual so the derived override is chosen at run time via the object
2. B.method overriding — a class deriving from exactly one base class
3. C.method overriding — defining several methods with the same name but different parameter lists in one scope
4. D.method overriding — a derived class redefining a base-class method with the same signature to change its behavior

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1. A.a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
2. B.a derived class redefining a base-class method with the same signature to change its behavior
3. C.a chain where a derived class itself becomes the base for a further derived class
4. D.binding resolved by the compiler, achieved through overloading and templates

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1. A.virtual function
2. B.single inheritance
3. C.hybrid inheritance
4. D.compile-time polymorphism

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1. A.compile-time polymorphism — a class deriving from more than one base class at the same time
2. B.compile-time polymorphism — a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
3. C.compile-time polymorphism — binding resolved by the compiler, achieved through overloading and templates
4. D.compile-time polymorphism — a derived class redefining a base-class method with the same signature to change its behavior

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1. A.an ambiguity in multiple inheritance where a class inherits the same base twice through two parents
2. B.binding resolved during execution through overridden virtual functions and dynamic dispatch
3. C.defining several methods with the same name but different parameter lists in one scope
4. D.a class deriving from more than one base class at the same time

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1. A.compile-time polymorphism
2. B.method overloading
3. C.upcasting
4. D.run-time polymorphism

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1. A.run-time polymorphism — a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
2. B.run-time polymorphism — an ambiguity in multiple inheritance where a class inherits the same base twice through two parents
3. C.run-time polymorphism — binding resolved during execution through overridden virtual functions and dynamic dispatch
4. D.run-time polymorphism — a class deriving from exactly one base class

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1. A.treating a derived-class object through a base-class pointer or reference
2. B.a base-class method declared virtual so the derived override is chosen at run time via the object
3. C.an ambiguity in multiple inheritance where a class inherits the same base twice through two parents
4. D.a per-class table of function pointers the runtime uses to dispatch virtual calls dynamically

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1. A.hierarchical inheritance
2. B.run-time polymorphism
3. C.virtual function
4. D.compile-time polymorphism

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1. A.virtual function — a per-class table of function pointers the runtime uses to dispatch virtual calls dynamically
2. B.virtual function — a base-class method declared virtual so the derived override is chosen at run time via the object
3. C.virtual function — defining several methods with the same name but different parameter lists in one scope
4. D.virtual function — several derived classes inheriting from a single common base class

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1. A.treating a derived-class object through a base-class pointer or reference
2. B.an ambiguity in multiple inheritance where a class inherits the same base twice through two parents
3. C.a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
4. D.a class deriving from more than one base class at the same time

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1. A.upcasting
2. B.hierarchical inheritance
3. C.method overriding
4. D.vtable

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1. A.upcasting — a combination of two or more inheritance types, such as hierarchical plus multiple, in one design
2. B.upcasting — treating a derived-class object through a base-class pointer or reference
3. C.upcasting — a chain where a derived class itself becomes the base for a further derived class
4. D.upcasting — binding resolved by the compiler, achieved through overloading and templates

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