MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Capped collections provide __________ management of inserted documents in MongoDB. |
| A. | FIFO |
| B. | LIFO |
| C. | LRU |
| D. | MRU |
| Answer» B. LIFO | |
| 2. |
The __________ feature of collections expires documents after a period of time. |
| A. | TEL |
| B. | TTL |
| C. | TPL |
| D. | None of the mentioned |
| Answer» C. TPL | |
| 3. |
To get the current number of namespaces in the mongo shell, use ________________ |
| A. | db.system.namespaces.countc() |
| B. | db.system.namespaces.count(*) |
| C. | db.system.namespaces.count() |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 4. |
MongoDB using the mmapv1 storage engine has limits on the number of __________ |
| A. | namespaces |
| B. | collections |
| C. | documents |
| D. | none of the mentioned |
| Answer» B. collections | |
| 5. |
To interact with embedded documents, use ___________ notation to “reach into” embedded documents. |
| A. | period |
| B. | dot |
| C. | comma |
| D. | colon |
| Answer» C. comma | |
| 6. |
Normalized data models describe relationships using ___________ between documents. |
| A. | relativeness |
| B. | references |
| C. | evaluation |
| D. | none of the mentioned |
| Answer» C. evaluation | |
| 7. |
Embedded data model is used when you have _________ relationships between entities. |
| A. | contains |
| B. | isa |
| C. | inheritance |
| D. | all of the mentioned |
| Answer» B. isa | |
| 8. |
___________ data models allow applications to store related pieces of information in the same database record. |
| A. | Reference |
| B. | Embedded |
| C. | External |
| D. | None of the mentioned |
| Answer» C. External | |