References - C++

1.	Which of the following statements is correct? Once the variable and the reference are linked they are tied together. Once the reference of a variable is declared another reference of that variable is not allowed.
	A. Only 1 is correct. B. Only 2 is correct. C. Both 1 and 2 are correct. D. Both 1 and 2 are incorrect.

2.	Which of the following statements is correct? We can return a global variable by reference. We cannot return a local variable by reference.
	A. Only 1 is correct. B. Only 2 is correct. C. Both 1 and 2 are correct. D. Both 1 and 2 are incorrect.

3.	Reference is like a _____.
	A. Pointer B. Structure C. Macro D. Enum

4.	Which of the following statement is correct?
	A. A reference is a constant pointer. B. A reference is not a constant pointer. C. An array of references is acceptable. D. It is possible to create a reference to a reference.

5.	Which of the following statement is correct?
	A. A reference is declared using * operator. B. Once a reference variable has been defined to refer to a particular variable it can refer to any other variable. C. A reference must always be initialized within classes. D. A variable can have multiple references.

References - C++

1.	A reference is declared using the _____ symbol.
	A. && B. & C. || D. !

2.	Which of the following statement is correct?
	A. Once a reference variable has been defined to refer to a particular variable it can refer to any other variable. B. A reference is indicated by using && operator. C. Once a reference variable has been defined to refer to a particular variable it cannot refer to any other variable. D. A reference can be declared beforehand and initialized later.

3.	Which of the following statements is correct? A reference is not a constant pointer. A referenced is automatically de-referenced.
	A. Only 1 is correct. B. Only 2 is correct. C. Both 1 and 2 are correct. D. Both 1 and 2 are incorrect.

4.	Which of the following statements is correct? An array of references is acceptable. We can also create a reference to a reference.
	A. Only 1 is correct. B. Only 2 is correct. C. Both 1 and 2 are correct. D. Both 1 and 2 are incorrect.

5.	Which of the following statement is correct?
	A. A referenced has to be de-referenced to access a value. B. A referenced does not need to be de-referenced to access a value. C. A referenced has to be double de-referenced to access a value. D. Whether a reference should be de-referenced or not depends on the type of the reference.

References - C++

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.

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.

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.

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.

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.