MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following method is overrided by Index filters? |
| A. | hint |
| B. | plan |
| C. | execute |
| D. | all of the mentioned |
| Answer» B. plan | |
| 2. |
Query shape consists of a combination of query, sort, and _________ specifications. |
| A. | selection |
| B. | projection |
| C. | collection |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
Syntax for specifying an initial batch size for the cursor is ________________ |
| A. | cursor: { batchSize: <string> } |
| B. | cursor: { batchSize: <int> } |
| C. | cur: { batchSize: <int> } |
| D. | none of the mentioned |
| Answer» C. cur: { batchSize: <int> } | |
| 4. |
To handle large datasets, set _________ option to true to enable writing data to temporary files. |
| A. | enableDiskUse |
| B. | allowDiskUse |
| C. | validateDiksUse |
| D. | none of the mentioned |
| Answer» C. validateDiksUse | |
| 5. |
Cursors returned from aggregation only supports cursor methods like ________________ |
| A. | cursor.hasNext() |
| B. | cursor.Next() |
| C. | cursor.has() |
| D. | all of the mentioned |
| Answer» B. cursor.Next() | |
| 6. |
QUERY_SHAPE_CONSISTS_OF_A_COMBINATION_OF_QUERY,_SORT,_AND___________SPECIFICATIONS.?$ |
| A. | selection |
| B. | projection |
| C. | collection |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 7. |
Which of the following method is overrided by Index filters ?$ |
| A. | hint |
| B. | plan |
| C. | execute |
| D. | all of the mentioned |
| Answer» B. plan | |
| 8. |
Which_of_the_following_method_is_overrided_by_Index_filters_?$ |
| A. | hint |
| B. | plan |
| C. | execute |
| D. | all of the mentioned |
| Answer» B. plan | |
| 9. |
Syntax for specifying an initial batch size for the cursor is ? |
| A. | cursor: { batchSize: <string> } |
| B. | cursor: { batchSize: <int> } |
| C. | cur: { batchSize: <int> } |
| D. | none of the mentioned |
| Answer» C. cur: { batchSize: <int> } | |
| 10. |
______ can be used to iterate the cursor of document results returned by db.collection.find(). |
| A. | it |
| B. | next |
| C. | cur |
| D. | none of the mentioned |
| Answer» B. next | |
| 11. |
Cursors returned from aggregation only supports cursor methods like : |
| A. | cursor.hasNext() |
| B. | cursor.Next() |
| C. | cursor.has() |
| D. | all of the mentioned |
| Answer» B. cursor.Next() | |
| 12. |
________ calculates aggregate values for the data in a collection. |
| A. | db.collection.aggregate |
| B. | db.collection.agg |
| C. | db.collection.pipeline |
| D. | all of the mentioned |
| Answer» B. db.collection.agg | |
| 13. |
Aggregation pipeline was introduced in MongoDB version ______ |
| A. | 2.1 |
| B. | 2.2 |
| C. | 2.4 |
| D. | 3.0 |
| Answer» C. 2.4 | |