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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which of the following is an advantage of reference? |
A. | Safer |
B. | Easier to use |
C. | Time consuming |
D. | Both A and B |
E. | |
Answer» E. | |
2. |
Which operator is used to de-references to an object? |
A. | # |
B. | & |
C. | * |
D. | None of the above |
Answer» E. | |
3. |
Dereference operator is also called as |
A. | pointer |
B. | Reference operator |
C. | Offset operator |
D. | Deoffset operator |
Answer» D. Deoffset operator | |
4. |
How many objects reference can refer during its lifetime? |
A. | 1 |
B. | 2 |
C. | 3 |
D. | 4 |
Answer» B. 2 | |
5. |
References can be NULL? |
A. | References has constant value 0. |
B. | References has constant value . |
C. | Yes. |
D. | No. |
Answer» E. | |
6. |
Through references we can avoid? |
A. | wastage of memory |
B. | wastage of CPU time |
C. | Both A and B |
D. | None of the above |
Answer» D. None of the above | |
7. |
If a function receives a reference to a variable, can it modify the value of the variable? |
A. | Yes |
B. | No |
C. | We can not pass reference to a variable. |
D. | Reference can not contain function. |
Answer» B. No | |
8. |
A variable can be declared as reference by putting _______ in the declaration. |
A. | # |
B. | $ |
C. | & |
D. | * |
Answer» D. * | |
9. |
A References is : |
A. | A variable that holds memory address. |
B. | A Alias to an existing variable. |
C. | Alias to an existing variable and holds memory address. |
D. | None of the above |
Answer» C. Alias to an existing variable and holds memory address. | |
10. |
Reference is like a? |
A. | Pointer |
B. | Structure |
C. | Array |
D. | None of the above |
Answer» B. Structure | |