C++ Advanced Quiz

Which of the following is NOT an example of an Abstract Data Type?

• Stack

• Queue

• int

• Linked List

An Abstract Data Type is mainly defined in terms of:

• Implementation details

• User-defined behavior (operations)

• Compiler directives

• Memory structure

In C++, objects are created at:

• Compile time only

• Run time only

• Either compile or run time depending on declaration

• Link time

Which of the following is FALSE about C++ classes?

• A class groups data and methods together

• A class is a user-defined data type

• A class must always have a constructor

• An object is an instance of a class

What happens if you declare a class without any access specifier in C++?

• All members are public

• All members are private

• Compilation error

• Members cannot be accessed at all

Consider the declaration: class A { int x; void fun(); };Here, x and fun() are by default:

• private

• public

• protected

• inaccessible

Which of the following about local classes is correct?

• They can access static variables of the function

• They cannot have static data members

• They cannot define methods

• They cannot create objects

If a global object is created, when is its constructor executed?

• Before main() starts

• Just before its first use

• After main() finishes

• When explicitly called

A local object created inside a block is destroyed:

• Immediately after its use

• At the end of the block

• Only when program exits

• Never destroyed automatically

Which of the following represents the identity of an object?

• Memory location / reference

• Data values

• Member functions

• Constructor