CS201 Quiz 2 Merged

CS201 For final term · UPDATED QUIZ 2 2021 · 1. To avoid dangling reference don’t return

The reference of a local variable from the function……confirm

Q2. Which one of the following is the declaration of overloaded pre-increment operator implemented as member function?

Class name operator ++()….confirm from net

3. Reference is a thing by which we can create ________ of any data type Synonym…..confirm
4. Reference cannot be uninitialized because it is impossible to ______. Initialize a Null pointer…..confirm

5. The syntax of declaration of a function that returns the reference to an integer is

6. Friend function declaration can go _________ the class

Anywhere in……confirm

7. To prevent dangling reference the functions returning reference should be used with

Static and global variables……….confirm

8. The only operator that the compiler overloads for user define data type be default in Arrangement (=) operator …..confirm from net

Q9. If operator function is non-member function then object on left side of operator cannot be ______________?

Object of member function…….confirm

10. Which of the following functionality can be achieved through overloading? New operators cannot be defined through operator overloading

11. The return type of the overloading new operator must be? Void*….confirm from net

12. For binary member operators, operands on the _________ derives (calls) the operation.

Left…….confirm

13. Identify the correct method of adding two strings, s1 and s2. Strcat(s1,s2)

14. A friend function of a class is a function defined _________.

Outside that class and that has the right to access all members of the class

15. Care must be taken about the correct ______ of operator while overloading.

Both Semantic and Complexity……confirm from net

16. We can _______ reference.

None of the given….confirm

Q17. If text is a pointer of type string then what will be the functionality of following statement?

Text = new String {5}; · Creates array of 5 objects dynamically…..confirm from net · 18. Look at the statement given below

Int & a; and tell what will happen?

Compiler will generate an error ‘a’ declared as reference but not initialized……confirm

19. The syntax of declaration of a function that returns the reference to an integer is

20. Which of the following syntax is best used to delete an array of 5 objects named ‘string’ allocated using new operator.

Delete []string;….confirm from net

Q21. If we do not write our own assignment operator then which of the following problem may occur?

22. Identify the correct syntax for making a class friend of other class

friend ClassOne · OtherClass; · private; · //here we write the data members of ClassOne · 23. Once an object is declared as a friend ________________

It has access to all non-public members as if they were public….confirm from net

24. Reference is a thing by which we can create ______ of any data type.

alias or synonym…both………confirm

25. A _______ function of a class is defined outside that class scope. But it can access all private and protected members of the class. Firend…..confirm
26. Once the __________ are created they exist for the life time of the program Static variables…..confirm