CPP

Level:-Basic
Q(1)	A reference is declared using the _____ symbol.
A	&&
B	&
C	\|\|
D	!
Q(2)	Pick out the correct statement.
A	virtual functions does not give the ability to write a templated function.
B	virtual functions does not give the ability to rewrite a templated function.
C	virtual functions does give the ability to write a templated function.
D	None of the above
Level:-Intermediate
Q(1)	How can we make a class abstract?
A	By making all member functions constant.
B	By making at least one member function as pure virtual function.
C	By declaring it abstract using the static keyword.
D	By declaring it abstract using the virtual keyword.
Q(2)	How to handle error in the destructor?
A	By throwing
B	By terminate
C	Both A and B
D	None of the above
Level:-Expert
Q(1)	Copy constructor must receive its arguments by __________ .
A	Either pass-by-value or pass-by-reference.
B	Only pass-by-value.
C	Only pass-by-reference.
D	Only pass by address.
Q(2)	What is the output of the following program? #include using namespace std; int main() { int a = 5; float b; cout << sizeof(++a + b); cout << a; return 0; }
A	2 6
B	4 6
C	2 5
D	4 5

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