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Reference: https://learn.mongodb.com/pages/mongodb-associate-database-administrator-exam
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Where to take MongoDB C100DBA Exam
This certification exam can be taken at the test center or online.
What Do You Need to Pass the MongoDB C100DBA Exam?
The only thing you need to pass the exam is knowledge of topics discussed in the exam study guide, time management skills, and practice. Posts of the best-selling MongoDB C100DBA exam dumps are also available on DumpsMaterials, but they are not expensive. It is advised to purchase this practice test, along with some useful documents to prepare for this examination. Of course, there are many other techniques that can be applied to how you can pass the exam, but it depends on your skills and knowledge of MongoDB. When taking the exam study guide it is important to be very familiar with what is discussed in each chapter. After all of that is done you should practice taking exams online so that you can familiarize yourself with whatever question type you expect during the actual exam. Posts with likes will typically stay up on the top of the listings. If you need to become MongoDB C100DBA certified it is necessary to post the relevant information that will help your clients better.
MongoDB C100DBA Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Sharding and Scalability | - Sharded cluster architecture - Balancing and scaling operations - Shard keys and distribution strategy |
| Topic 2: Aggregation Framework | - Aggregation pipeline stages - Aggregation operators - Data transformation and grouping |
| Topic 3: Data Modeling | - Embedding vs referencing - Schema design principles - Relationships in MongoDB |
| Topic 4: Indexing and Performance Tuning | - Index types and usage - Query performance optimization - Explain plans and diagnostics |
| Topic 5: Replication and High Availability | - Failover and elections - Read/write concerns - Replica set architecture |
| Topic 6: MongoDB CRUD Operations | - Querying and filtering documents - Working with documents and BSON types - Insert, update, and delete operations |
| Topic 7: Security | - Encryption at rest and in transit - Role-based access control (RBAC) - Authentication and authorization |
| Topic 8: Backup, Restore, and Operations | - Backup strategies and tools - Restore procedures - Monitoring and maintenance |
MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions:
What does the totalKeysExamined field returned by the explain method indicate?
- A. Number of documents that match the query condition
- B. Number of index entries scanned
- C. Number of documents scanned
- D. Details the completed execution of the winning plan as a tree of stages
Correct Answer: B 🗳️
To add a new user and enable authentication in MongoDB, which of the following steps need be executed?
- A. update users collection and run db.enableAuthenticationQ
- B. update users collection and restart mongodb
- C. update users collection and restart mongodb with -auth option
- D. All of the above
Correct Answer: C 🗳️
Which of the following aggregation commands in MongoDB does not support sharded collections?
- A. group
- B. mapReduce
- C. aggregate
- D. All of the above
Correct Answer: A 🗳️
What encoded format does MongoDB store documents in?
- A. BSON
- B. JSON
- C. XML
- D. Base 64
Correct Answer: A 🗳️
Explanation: Only visible for DumpsMaterials members. You can sign-up / login (it's free).
Consider that our posts collection contains an array field called tags that contains tags that the user enters. {
Which of the following commands will find all the posts that have been tagged as tutorial.
- A. db.posts.findInArray( { tags : " tutorial " > );
- B. db.posts.find( { $array : {tags: " tutorial " ) > );
- C. db.posts.find( { tags : [ " tutorial " ] } );
- D. db.posts.find( { tags : " tutorial " } );
Correct Answer: D 🗳️
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