Pointer to Objects MCQ

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• References to object are same as pointers of object.
  ক

  True

  খ

  False
• What should be done to prevent changes that may be made to the values pointed by the pointer?
  ক

  Usual pointer can’t change the values pointed

  খ

  Pointer should be made virtual

  গ

  Pointer should be made anonymous

  ঘ

  Pointer should be made const
• How can the address stored in the pointer be retrieved?
  ক

  Using * symbol

  খ

  Using $ symbol

  গ

  Using & symbol

  ঘ

  Using @ symbol
• If a pointer to an object is created and the object gets deleted without using the pointer then __________
  ক

  It becomes void pointer

  খ

  It becomes dangling pointer

  গ

  It becomes null pointer

  ঘ

  It becomes zero pointer
• Which is the correct syntax to call a member function using pointer?
  ক

  pointer->function()

  খ

  pointer.function()

  গ

  pointer::function()

  ঘ

  pointer:function()
• Is name of an array of objects is also a pointer to object?
  ক

  Yes, always

  খ

  Yes, in few cases

  গ

  No, because it represents more than one object

  ঘ

  No, never
• Can pointers to object access the private members of the class?
  ক

  Yes, always

  খ

  Yes, only if it is only pointer to object

  গ

  No, because objects can be referenced from another objects too

  ঘ

  No, never
• Pointer to a base class can be initialized with the address of derived class, because of _________
  ক

  derived-to-base implicit conversion for pointers

  খ

  base-to-derived implicit conversion for pointers

  গ

  base-to-base implicit conversion for pointers

  ঘ

  derived-to-derived implicit conversion for pointers
• A pointer _________________
  ক

  Can point to only one object at a time

  খ

  Can point to more than one objects at a time

  গ

  Can point to only 2 objects at a time

  ঘ

  Can point to whole class objects at a time
• What is the size of an object pointer?
  ক

  Equal to size of any usual pointer

  খ

  Equal to size of sum of all the members of object

  গ

  Equal to size of maximum sized member of object

  ঘ

  Equal to size of void
• If pointer to an object is declared __________
  ক

  It can store any type of address

  খ

  It can store only void addresses

  গ

  It can only store address of integer type

  ঘ

  It can only store object address of class type specified
• How does compiler decide the intended object to be used, if more than one object are used?
  ক

  Using object name

  খ

  Using an integer pointer

  গ

  Using this pointer

  ঘ

  Using void pointer
• Which operator should be used to access the members of the class using object pointer?
  ক

  Dot operator

  খ

  Colon to the member

  গ

  Scope resolution operator

  ঘ

  Arrow operator
• Which language among the following doesn’t allow pointers?
  ক

  C++

  খ

  Java

  গ

  Pascal

  ঘ

  C