General Questions

Question 1 :

Which of the following statement is correct?


A). A reference is stored on heap.
B). A reference is stored on stack.
C). A reference is stored in a queue.
D). A reference is stored in a binary tree.
Answer : Option B

Question 2 :

Which of the following statements is correct?

Once a reference variable has been defined to refer to a particular variable it can refer to any other variable. A reference is not a constant pointer.


A). Only 1 is correct.
B). Only 2 is correct.
C). Both 1 and 2 are correct.
D). Both 1 and 2 are incorrect.
Answer : Option D

Question 3 :

Functions can be declared to return a reference type. There are reasons to make such a declaration/Which of the following reasons are correct?

The information being returned is a large enough object that returning a reference is more efficient than returning a copy.
The type of the function must be a R-value.


A). Only 1 is correct.
B). Only 2 is correct.
C). Both 1 and 2 are correct.
D). Both 1 and 2 are incorrect.
Answer : Option C

Question 4 :

Which of the following statements is correct?

Change a reference changes the referent.
We can create an array of references.


A). Only 1 is correct.
B). Only 2 is correct.
C). Both 1 and 2 are correct.
D). Both 1 and 2 are incorrect.
Answer : Option A

Question 5 :

Which of the following statement is correct about the references?


A). A reference must always be initialized within functions.
B). A reference must always be initialized outside all functions.
C). A reference must always be initialized.
D). Both A and C.
Answer : Option C