What are the questions asked in MongoDB C100DBA Exam
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Reference: https://learn.mongodb.com/pages/mongodb-associate-database-administrator-exam
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This is the only entry level certification available for MongoDB. If you like to test your knowledge of MongoDB technology and want to take one exam, then this is the right option for you. It does not take much time to pass this certification exam. Previous experience in database administration or database programming is not required for this certification exam. Evaluation based on your performance. Real-time experience in MongoDB is not required for this certification exam. Certified you have the knowledge and experience of using MongoDB. Real-time experience in database administration or database programming is not required for this certification exam. Quote, which is the most popular option for MongoDB certification. Correct information about this exam. MongoDB C100DBA Dumps Check how to prepare for MongoDB C100DBA exam, which is the most popular option for certification preparation.
MongoDB C100DBA Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Replication and High Availability | - Failover and elections - Read/write concerns - Replica set architecture |
| Aggregation Framework | - Data transformation and grouping - Aggregation pipeline stages - Aggregation operators |
| Sharding and Scalability | - Shard keys and distribution strategy - Sharded cluster architecture - Balancing and scaling operations |
| Security | - Role-based access control (RBAC) - Encryption at rest and in transit - Authentication and authorization |
| Data Modeling | - Relationships in MongoDB - Schema design principles - Embedding vs referencing |
| MongoDB CRUD Operations | - Working with documents and BSON types - Querying and filtering documents - Insert, update, and delete operations |
| Indexing and Performance Tuning | - Index types and usage - Explain plans and diagnostics - Query performance optimization |
| Backup, Restore, and Operations | - Restore procedures - Monitoring and maintenance - Backup strategies and tools |
MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions:
What command is used to grant a role " customRole1 " to an existing user called " user1 " ?
- A. db.addRoleToUser( " user1 " , [ " customRole1 " ])
- B. db.grantRoles( " user1 " , [ " customRole1 " ])
- C. db.grantRolesToUser( " user1 " , [ " customRole1 " ])
- D. db.createUser({ user: " user1 " , pwd: " pwd1 " , roles: [{ role: " customRole1 " , db: " admin " }] })
Correct Answer: C 🗳️
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What are TWO functions of sharding?
- A. Supporting deployments that require redundancy and increased data availability.
- B. Supporting deployments with very large data sets and high throughput operations.
- C. Supporting deployments that require strong consistency across geographical zones.
- D. Supporting deployments where datasets fit into RAM and performance needs are met.
- E. Supporting deployments that distribute data across different geographical zones.
Correct Answer: B,E 🗳️
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Which of the following is correct about MongoDB?
- A. MongoDB uses JSON format to represent documents
- B. MongoDB supports some of the SQL functions
- C. MongoDB supports collection joins
- D. MongoDB supports geospatial indexes
Correct Answer: D 🗳️
Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.
- A. Members of a replica set may replicate data from any other data-bearing member of the set by default
- B. Operations on the primary are recorded in a capped collection called the oplog
- C. Clients read from the nearest member of a replica ser by default
Correct Answer: B 🗳️
In a replica set, which member is responsible for maintaining copies of the primary ' s data?
- A. Shard
- B. Secondary
- C. Mongos
- D. Arbiter
Correct Answer: B 🗳️
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