MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Only the ______ geospatial index supports the $polygon operator. |
| A. | 1dsphere |
| B. | 2d |
| C. | 3d |
| D. | None of the mentioned |
| Answer» C. 3d | |
| 2. |
To support ________ based sharding, MongoDB provides a hashed index type. |
| A. | primary |
| B. | root |
| C. | hash |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 3. |
On replica sets, the TTL background thread only deletes documents on _____________ |
| A. | primary |
| B. | secondary |
| C. | upadte |
| D. | none of the mentioned |
| Answer» B. secondary | |
| 4. |
MongoDB supports spherical surface calculations on legacy coordinate pairs using a _______ index. |
| A. | 2dsphere |
| B. | 2d |
| C. | geoHaystack |
| D. | all of the mentioned |
| Answer» B. 2d | |
| 5. |
Which of the following method is to verify whether MongoDB used index intersection? |
| A. | explain() |
| B. | analyze() |
| C. | intersect() |
| D. | none of the mentioned |
| Answer» B. analyze() | |
| 6. |
Which of the following is used to calculate distances on a Euclidean plane? |
| A. | 2dsph |
| B. | 2d |
| C. | geoHaystack |
| D. | all of the mentioned |
| Answer» C. geoHaystack | |
| 7. |
Which of the following indexes cannot be multikey? |
| A. | Hashed |
| B. | Unique |
| C. | Multikey |
| D. | compound |
| Answer» B. Unique | |
| 8. |
If the specified polygon is _______ than a single hemisphere, the behavior of $geoWithin with the MongoDB CRS is the same as with the default CRS. |
| A. | smaller |
| B. | bigger |
| C. | equal |
| D. | all of the mentioned |
| Answer» B. bigger | |
| 9. |
Which of the following GeoJSON object is not supported in MongoDB? |
| A. | Point |
| B. | LineString |
| C. | MultiPoint |
| D. | None of the mentioned |
| Answer» E. | |
| 10. |
__________ views partial execution statistics collected during plan selection. |
| A. | curs.explain() |
| B. | cursor.explain() |
| C. | cursr.explain() |
| D. | all of the mentioned |
| Answer» C. cursr.explain() | |
| 11. |
Which of the following indexes are always sparse? |
| A. | 2dsphere |
| B. | 2d |
| C. | geoHaystack |
| D. | all of the mentioned |
| Answer» E. | |
| 12. |
Specify the ______ operator to the hint() method to prevent MongoDB from using any index. |
| A. | $unique |
| B. | $natural |
| C. | $spatial |
| D. | all of the mentioned |
| Answer» C. $spatial | |
| 13. |
MongoDB also supports user-defined indexes on multiple fields called ____________ |
| A. | compound |
| B. | composite |
| C. | candidate |
| D. | none of the mentioned |
| Answer» B. composite | |
| 14. |
MongoDB provides a ________ index type that supports searching for string content in a collection. |
| A. | string |
| B. | text |
| C. | char |
| D. | none of the mentioned |
| Answer» C. char | |