MongoDB interview questions part 43
MongoDB interview questions part 43
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Total Questions: 20
1. With ___________ enabled, MongoDB forces all clients to identify themselves before granting access to the server.
Correct Answer is : authentication
2. ___________ allows administrators to define and limit the resources and operations that a user can access.
Correct Answer is : Authorization
3. Point out the wrong statement :
Correct Answer is : For MongoDB, the defaults to mongodb
4. Use the __________ option to ensure that MongoDB listens for connections from applications on configured addresses.
Correct Answer is : bind_ip
5. To generate pseudo-random data to use for a keyfile, issue the following __________ command.
Correct Answer is : openssl
6. _____________ is used to initiate relica member set.
Correct Answer is : rs.initiate()
7. Which of the following is used to display the replica set configuration object ?
Correct Answer is : rs.conf
8. MongoDB supports the execution of JavaScript code for certain server-side operations like:
Correct Answer is : all of the mentioned
9. When a chunk grows beyond the chunk size, MongoDB attempts to split the chunk into smaller chunks, always based on ranges in the :
Correct Answer is : tag sets
10. Point out the correct statement:
Correct Answer is : All of the mentioned
11. The index on the shard key cannot be a _________ index.
Correct Answer is : multkikey
12. Hashed shard keys use a ________ index of a single field as the shard key to partition data across your sharded cluster.
Correct Answer is : hashed
13. Point out the correct statement :
Correct Answer is : If you shard an empty collection using a hashed shard key, MongoDB will automatically create and migrate chunks so that each shard has two chunks
14. You can control how many chunks MongoDB will create with the ___________ parameter.
Correct Answer is : numInitialChunks
15. MongoDB automatically computes the hashes when resolving queries using ______ indexes.
Correct Answer is : muiltkey
16. MongoDB generates _______ values upon document creation to produce a unique identifier for the object.
Correct Answer is : ObjectId
17. A shard key that increases monotonically will not hinder performance if most of your write operations are ____ operations.
Correct Answer is : update()
18. The mongos provides an interface for applications to interact with sharded clusters that hides the complexity of data ______
Correct Answer is : partitioning
19. _______ runs a database command against the admin database of a mongos instance.
Correct Answer is : sh._adminCommand()
20. Point out the correct statement:
Correct Answer is : The unique constraint on indexes ensures that only one document can have a value for a field in a collection
