All functions of an abstract class must be abstract.

July 9, 2021 in C and CPP

All functions of an abstract class must be abstract.

Each statement below is either TRUE or FALSE. Choose the most appropriate one
and ENTER in the “tear-off” sheet attached to the question paper, following
instructions therein.

2.1 All functions of an abstract class must be abstract.
2.2 Constructor should be called explicitly.
2.3 The body of the “for” loop executes before executing the test expression in “for” loop.
2.4 It is possible to inherit a new class from class template.
2.5 Object Oriented Programming language permits functional and data abstractions.
2.6 A class can have public data and private functions.
2.7 Operator overloading is called compile time polymorphism.
2.8 When an exception is thrown an exception class’s constructor gets called.
2.9 A pure virtual function can never have a body.
2.10 cerr and clog are standard streams of type ostream.

July 9, 2021 in C and CPP

To write data to a file, you create an instance of

1.10 To write data to a file, you create an instance of
A) iostream
B) ifstream
C) ofstream
D) stream

July 9, 2021 in C and CPP

How many constructors a class have?

1.9 How many constructors a class have?
A) 0
B) 1
C) 2
D) any number

July 9, 2021 in C and CPP

Which of the following is an abstract function?

1.8 Which of the following is an abstract function?
A) virtual double getArea();
B) virtual double getArea() = 0;
C) double getArea() = 0;
D) double getArea();

July 9, 2021 in C and CPP

Suppose circle1 and circle2 are two Circle objects.

1.7 Suppose circle1 and circle2 are two Circle objects. What does the following statement do?
circle2 = circle1;
A) It copies the contents of circle1 to circle2
B) It makes circle2 and circle1 the same object
C) It copies the contents of circle2 to circle1
D) The statement is illegal

July 9, 2021 in C and CPP

Which of the following can not be overloaded?

1.6 Which of the following can not be overloaded?
A) new
B) delete
C) ?:
D) All of the above

July 9, 2021 in C and CPP

If changes made to the formal argument of a function are reflected in actual argument passed to the function it is referred as

1.5 If changes made to the formal argument of a function are reflected in actual argument
passed to the function it is referred as
A) function invocation
B) call by value
C) call by reference
D) call by name

July 9, 2021 in C and CPP

What is the value in count after the following loop is executed?

1.4 What is the value in count after the following loop is executed?
int count = 0;
do
{
cout << "Welcome to C++";
} while (count++ < 9);
cout << count;
A) 8
B) 9
C) 10
D) 11

July 9, 2021 in C and CPP

Which of the following is the correct expression that evaluates to true if the number x is between 1 and 100 or the number is negative?

1.3 Which of the following is the correct expression that evaluates to true if the number x is between 1 and 100 or the number is negative?
A) 1 < x < 100 && x < 0
B) ((x < 100) && (x > 1)) || (x < 0)
C) ((x < 100) && (x > 1)) && (x < 0)
D) (1 > x > 100) || (x < 0)

July 9, 2021 in C and CPP

A pointer can hold

1.2 A pointer can hold
A) The address of another variable
B) Stored value of the variable
C) Initialization of the variable
D) The address of the same variable