DAY-2 DSA BOOTCAMP

Which of the following is not correct for virtual function in C++ ?

• Must be declared in public section of class.

• Virtual function can be static.

• Virtual function should be accessed using pointers.

• Virtual function is defined in base class

Identify the scope resolution operator.

• :

• ;

• : :

• | |

Which of the following is not the member of class?

• Static function

• Friend function

• Const function

• Virtual function

How many instances of an abstract class can be created?

• 0

• Equal to number of class objects created

• Abstract Value

• Infinite

Why reference is not same as a pointer?

• A reference can never be null.

• A reference once established cannot be changed.

• Reference doesn't need an explicit dereferencing mechanism.

• All of the above.

Can we declare an array size as negative?

• Yes, you can declare an array size as negative in certain programming languages.

• No, you cannot declare an array size as negative in any programming language.

• It depends on the programming language, some allow negative array sizes while others do not.

• Negative array sizes are only allowed in advanced data structures, not in regular arrays.

• Pccoe_Pune

• GFGPCCOE

• PGcFcGoPeC_CPOuEne

• Pccoe_PuneGFGPCCOE

• Loop runs Infinitely

• 13 10 7 4 1

• 15 12 8 5 2

• 14 11 8 5 2

What happens if we use an array without assigning the size?

• The array will have a size of 0.

• The program will throw a compilation-time error.

• The size of the array will be determined by the memory available in the system.

• The array will have a random size.

Which of these is an incorrect Statement?

• It is necessary to use new operator to initialize an array

• Array can be initialized using comma separated expressions surrounded by curly braces

• Array can be initialized when they are declared

• None of the mentioned