MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your C++ Programming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following Operator cannot be used with pairs? |
| A. | + |
| B. | == |
| C. | = |
| D. | != |
| Answer» B. == | |
| 2. |
What happens if a pair is not initialized? |
| A. | Both first and second part is initialized to zero or null |
| B. | Both first and second part is initialized a garbage value |
| C. | First is initialized to zero or null and second is initialized a garbage value |
| D. | Second is initialized to zero or null and first is initialized a garbage value |
| Answer» B. Both first and second part is initialized a garbage value | |
| 3. |
Which of the following is correct way of copying the values of pair p1 into other pair p2? |
| A. | pair <type,type> p2 = p1; |
| B. | pair <type,type> p2(p1); |
| C. | Both pair <type,type> p2 = p1; and pair <type,type> p2(p1); |
| D. | Pair <int,int> p2.copy(p1); |
| Answer» D. Pair <int,int> p2.copy(p1); | |
| 4. |
Which of the following is the correct syntax of accessing the second element of a pair p? |
| A. | p.first |
| B. | p.second |
| C. | p[0] |
| D. | p[1] |
| Answer» C. p[0] | |
| 5. |
Which of the following is the correct syntax of accessing the first element of a pair p? |
| A. | p.first |
| B. | p.second |
| C. | p[0] |
| D. | p[1] |
| Answer» B. p.second | |
| 6. |
Which operator is used to access the first or second element of a pair? |
| A. | -> |
| B. | . |
| C. | * |
| D. | [] |
| Answer» C. * | |
| 7. |
Which of the following operations can be performed on a pair? |
| A. | Assignment of pairs |
| B. | Copying of one pair to another |
| C. | Comparison of two pairs |
| D. | All of the mentioned |
| Answer» E. | |
| 8. |
Which of the following is the correct syntax of using pair p? |
| A. | pair <type,type> p; |
| B. | pair p <type,type>; |
| C. | pair [type,type] p; |
| D. | pair p [type,type]; |
| Answer» B. pair p <type,type>; | |
| 9. |
Which header file is required to use pair container in your program? |
| A. | <algorihtm> |
| B. | <utility> |
| C. | <pair> |
| D. | <utitityPair> |
| Answer» C. <pair> | |
| 10. |
What is a pair? |
| A. | Container consisting of two data elements of the same type |
| B. | Container consisting of two data elements of different type |
| C. | Container consisting of one header and two data elements of the same type |
| D. | Container consisting of two data elements can have the same or different type |
| Answer» E. | |