MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
db.collection.aggregate() returns a _______ and can return result sets of any size. |
| A. | replica |
| B. | cursor |
| C. | document |
| D. | $subtract |
| Answer» C. document | |
| 2. |
_________ returns a value without parsing. |
| A. | $string |
| B. | $literal |
| C. | $characters |
| D. | None of the mentioned |
| Answer» C. $characters | |
| 3. |
_______ returns the number of elements in the array. |
| A. | $number |
| B. | $size |
| C. | $div |
| D. | None of the mentioned |
| Answer» C. $div | |
| 4. |
Which of the following accepts named parameters? |
| A. | $reduce |
| B. | $letnum |
| C. | $let |
| D. | None of the mentioned |
| Answer» E. | |
| 5. |
Which of the following performs case-insensitive string comparison? |
| A. | $strcasecmpequals |
| B. | $strcasecmp |
| C. | $strcmp |
| D. | None of the mentioned |
| Answer» B. $strcasecmp | |
| 6. |
Which of the following accepts a single argument expression? |
| A. | $toLow |
| B. | $toUpper |
| C. | $toEqual |
| D. | None of the mentioned |
| Answer» C. $toEqual | |
| 7. |
Which of the following returns a substring of a string? |
| A. | $subs |
| B. | $substring |
| C. | $substr |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
__________RETURNS_A_VALUE_WITHOUT_PARSING.?$ |
| A. | $string |
| B. | $literal |
| C. | $characters |
| D. | None of the mentioned |
| Answer» C. $characters | |
| 9. |
db.collection.aggregate()_returns_a_________and_can_return_result_sets_of_any_size.$ |
| A. | replica |
| B. | cursor |
| C. | document |
| D. | $subtract |
| Answer» C. document | |
| 10. |
_______ returns the number of elements in the array? |
| A. | $number |
| B. | $size |
| C. | $div |
| D. | None of the mentioned |
| Answer» C. $div | |
| 11. |
Which of the following accepts named parameters ? |
| A. | $reduce |
| B. | $letnum |
| C. | $let |
| D. | None of the mentioned |
| Answer» E. | |
| 12. |
_______ is used for access text search metadata. |
| A. | $text |
| B. | $metades |
| C. | $meta |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 13. |
Which of the following performs case-insensitive string comparison ? |
| A. | $strcasecmpequals |
| B. | $strcasecmp |
| C. | $strcmp |
| D. | None of the mentioned |
| Answer» B. $strcasecmp | |
| 14. |
Which of the following accepts a single argument expression ? |
| A. | $toLow |
| B. | $toUpper |
| C. | $toEqual |
| D. | None of the mentioned |
| Answer» C. $toEqual | |
| 15. |
Which of the following returns a substring of a string ? |
| A. | $subs |
| B. | $substring |
| C. | $substr |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |