MongoDB Online Test

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This practice test has 20 questions
You have to attempt all the questions
Time will be 05:00 minute for 20 questions. After 05:00 minute, practice test will be submitted automatically and you will redirect to result page.
This practice test is for self evalutation, if you get less marks then passing marks. Please prepare more for get excellent mark next time
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1. What does the "MongoDB Connection String" specify in a MongoDB driver?

Username and password MongoDB server host and port Driver-specific options Data storage details

2. Which MongoDB sharding strategy is suitable for time-series data?

Hashed Shard Key Range-based Shard Key Dynamic Shard Key Static Shard Key

3. Which text index type in MongoDB is designed for case-insensitive text search?

Text Index Compound Index Case-Insensitive Index Collation Index

4. In MapReduce, what is the purpose of the "map" function?

Sorting data Filtering data Indexing data Transforming and emitting data

5. What is the primary goal of monitoring in MongoDB?

Data modeling Performance optimization Data storage efficiency Identifying and resolving issues

6. In MongoDB, what is a "hot backup"?

A database snapshot A backup with high temperature A backup taken without users A cold storage backup

7. What is the key feature of MongoDB Atlas that simplifies database deployment and management?

Auto-sharding NoSQL database Serverless computing Automated operations

8. Which data type is used to store geospatial data in MongoDB?

String Integer Double Geospatial

9. When is it advisable to use the "skip" and "limit" methods for paging through query results in MongoDB?

For all queries For small result sets For large result sets For complex queries

10. In MongoDB, what is a "write concern" for a transaction?

A way to specify transaction duration A timeout setting A mechanism for enabling multi-document transactions A level of transaction data durability

11. How should you handle security in MongoDB to follow best practices?

Disable authentication Enable authentication Store passwords in plain text Use weak encryption methods

12. What is the primary purpose of auditing in MongoDB?

Data retrieval Data replication Access control Record and review user actions

13. What does the "right to be forgotten" entail in terms of data compliance in MongoDB?

Data encryption Data modeling Data retention Data erasure

14. Which MongoDB version introduced support for multi-document transactions?

MongoDB 2.4 MongoDB 3.0 MongoDB 4.0 MongoDB 4.2

15. What is the $lookup operator used for in MongoDB Aggregation?

Filtering data Joining data Sorting data Projecting data

16. What is the recommended approach for modeling hierarchical data in MongoDB?

Parent References Tree Structure Embedded Subdocuments Nested Arrays

17. What is the minimum number of nodes required to form a replica set in MongoDB?

1 2 3 4

18. How is a "write concern" specified when starting a transaction in MongoDB?

In the transaction options As a parameter in the session As an option when defining the transaction As a separate transaction command

19. What is the recommended strategy for ensuring high availability in MongoDB?

Single replica set Sharding Use multiple standalone servers Replica sets and sharding

20. What is the role of MongoDB client libraries and drivers?

Storing data Querying data Communicating with the MongoDB server Defining the data model