MCQOPTIONS
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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 | |