MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Each index in MongoDB requires at least _________ of data space. |
| A. | 8KB |
| B. | 28KB |
| C. | 68KB |
| D. | 108KB |
| Answer» B. 28KB | |
| 2. |
___________ strategy is used to explicitly avoid document growth. |
| A. | deallocation |
| B. | allocation |
| C. | pre-allocation |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
With MongoDB 3.0.0, the default use of the Power of _________ Allocations minimizes the occurrences of re-allocations as well as allows for the effective reuse of the freed record space. |
| A. | 2 Sized |
| B. | 3 Sized |
| C. | 4 Sized |
| D. | 5 Sized |
| Answer» B. 3 Sized | |
| 4. |
Point out the wrong statement.a) The key decision in designing data models for MongoDB applications revolves around the structure of documents and how the application represents relationships between datab) There are two tools that allow applications to represent these relationships: references and embedded documentsc) When designing data models, always consider the application usage of the data (i.e. queries, updates, and processing of the dat |
| A. | The key decision in designing data models for MongoDB applications revolves around the structure of documents and how the application represents relationships between data |
| B. | There are two tools that allow applications to represent these relationships: references and embedded documents |
| C. | When designing data models, always consider the application usage of the data (i.e. queries, updates, and processing of the data) as well as the inherent structure of the data itself |
| D. | All of the mentioned |
| Answer» E. | |
| 5. |
____________STRATEGY_IS_USED_TO_EXPLICITLY_AVOID_DOCUMENT_GROWTH.?$ |
| A. | deallocation |
| B. | allocation |
| C. | pre-allocation |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 6. |
Each_index_in_MongoDB_requires_at_least___________of_data_space.$ |
| A. | 8KB |
| B. | 28KB |
| C. | 68KB |
| D. | 108KB |
| Answer» B. 28KB | |
| 7. |
With MongoDB 3.0.0,the default use of the Power of _________ Allocations minimizes the occurrences of re-allocations as well as allows for the effective reuse of the freed record space? |
| A. | 2 Sized |
| B. | 3 Sized |
| C. | 4 Sized |
| D. | 5 Sized |
| Answer» B. 3 Sized | |
| 8. |
For the __________ storage engine, if the document size exceeds the allocated space for that document, MongoDB relocates the document on disk. |
| A. | MAPv1 |
| B. | MAPv2 |
| C. | MAPv3 |
| D. | MAPv4 |
| Answer» D. MAPv4 | |
| 9. |
A ____________ data model with embedded data combines all related data for a represented entity in a single document. |
| A. | normalized |
| B. | denormalized |
| C. | non relational |
| D. | relational |
| Answer» C. non relational | |
| 10. |
______________ documents capture relationships between data by storing related data in a single document structure. |
| A. | Capped |
| B. | Embedded |
| C. | External |
| D. | Internal |
| Answer» C. External | |
| 11. |
In MongoDB, write operations are atomic at the __________ level. |
| A. | collection |
| B. | document |
| C. | row |
| D. | all of the mentioned |
| Answer» C. row | |
| 12. |
________ store the relationships between data by including links or references from one document to another. |
| A. | Capped |
| B. | Embedded |
| C. | External |
| D. | References |
| Answer» E. | |