vu cs304 Mid Term - Quiz No.8
vu cs304 Object Oriented Programming Quiz
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Question 1: Your chief Software designer has shown you a sketch of the new Computer parts system she is about to create. At the top of the hierarchy is a Class called Computer and under this are two child classes. One is called LinuxPC and one is called WindowsPC. The main difference between the two is that one runs the Linux operating System and the other runs the Windows System (of course another difference is that one needs constant re-booting and the other runs reliably). Under the WindowsPC are two Sub classes one called Server and one Called Workstation. How might you appraise your designers work?
Give the goahead for further design using the current scheme
Ask for a re-design of the hierarchy with changing the Operating System to a field rather than Class type
Ask for the option of WindowsPC to be removed as it will soon be obsolete
Change the hierarchy to remove the need for the superfluous Computer Class.
Question 2: The sub-objects life is not dependent on the life of master class in __________.
Composition
Aggregation
Separation
non of the given
Question 3: When the base class and the derived class have a member function with the same name, you must be more specific which function you want to call (using __________ ).
scope resolution operator
dot operator
null operator
Operator overloading
Question 4: Operator overloading is
making C++ operators work with objects.
giving C++ operators more than they can handle.
giving new meanings to existing Class members.
making new C++ operators
Question 5: Suppose there is an object of type Person, which of the following can be considered as one of its attributes
Name
Age
Work()
Both Name and Age
Question 6: Identify which of the following overloaded operator function's declaration is appropriate for the given call? Rational_number_1 + 2.325 Where Rational_number_1 is an object of user defined class Rational_number
operator+(double& obj);
Rational_number operator+(Rational_number &obj, double& num);
Rational_number operator+( Rational_number & obj);
Rational_number operator+(double& obj);
Question 7: Vectors contain contiguous elements stored as a[an] __________.
variable
array
function
datatype
Question 8: Identify which of the following overloaded operator function's declaration is appropriate for the given call?
Rational_number_1 + 2.325
Where Rational_number_1 is an object of user defined class Rational_number.
Rational_number_1 + 2.325
Where Rational_number_1 is an object of user defined class Rational_number.
Rational_number operator+( Rational_number & obj);
Rational_number operator+(double& obj);
Rational_number operator+(Rational_number &obj, double& num);
operator+(double& obj)
Question 9: Public methods of base class can __________ be accessed in its derived class
directly
inderectly
simultaniously
non of the given
Question 10: What problem(s) may occur when we copy objects without using deep copy constructor?
Dangling pointer
Memory Leakage
System crash
All of the given
