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. |
The mongos provides an interface for applications to interact with sharded clusters that hides the complexity of data ______ |
| A. | partitioning |
| B. | replication |
| C. | sharding |
| D. | none of the mentioned |
| Answer» B. replication | |
| 2. |
A shard key that increases monotonically will not hinder performance if most of your write operations are ____ operations. |
| A. | insert() |
| B. | update() |
| C. | delete() |
| D. | all of the mentioned |
| Answer» C. delete() | |
| 3. |
MongoDB generates _______ values upon document creation to produce a unique identifier for the object. |
| A. | ObjectId |
| B. | CompId |
| C. | DoctId |
| D. | All of the mentioned |
| Answer» B. CompId | |
| 4. |
When a chunk grows beyond the chunk size, MongoDB attempts to split the chunk into smaller chunks, always based on ranges in the _____________ |
| A. | replica set |
| B. | shard key |
| C. | tag sets |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 5. |
THE_MONGOS_PROVIDES_AN_INTERFACE_FOR_APPLICATIONS_TO_INTERACT_WITH_SHARDED_CLUSTERS_THAT_HIDES_THE_COMPLEXITY_OF_DATA_______?$ |
| A. | partitioning |
| B. | replication |
| C. | sharding |
| D. | none of the mentioned |
| Answer» B. replication | |
| 6. |
A shard key that increases monotonically will not hinder performance if most of your write operations are ____ operations? |
| A. | insert() |
| B. | update() |
| C. | delete() |
| D. | all of the mentioned |
| Answer» C. delete() | |
| 7. |
MongoDB generates _______ values upon document creation to produce a unique identifier for the object? |
| A. | ObjectId |
| B. | CompId |
| C. | DoctId |
| D. | all of the mentioned |
| Answer» B. CompId | |
| 8. |
MongoDB automatically computes the hashes when resolving queries using ______ indexes. |
| A. | hashed |
| B. | unique |
| C. | muiltkey |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 9. |
You can control how many chunks MongoDB will create with the ___________ parameter. |
| A. | numChunks |
| B. | numInitialChunks |
| C. | numberofchunks |
| D. | all of the mentioned |
| Answer» C. numberofchunks | |
| 10. |
Hashed shard keys use a ________ index of a single field as the shard key to partition data across your sharded cluster. |
| A. | hashed |
| B. | unique |
| C. | multkikey |
| D. | all of the mentioned |
| Answer» B. unique | |
| 11. |
The index on the shard key cannot be a _________ index. |
| A. | single |
| B. | multkikey |
| C. | unique |
| D. | all of the mentioned |
| Answer» C. unique | |
| 12. |
When a chunk grows beyond the chunk size, MongoDB attempts to split the chunk into smaller chunks, always based on ranges in the : |
| A. | replica set |
| B. | shard key |
| C. | tag sets |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |