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MongoDB C100DBA Exam Syllabus Topics:

Section	Objectives
Security	- Authentication and authorization - Role-based access control (RBAC) - Encryption at rest and in transit
Aggregation Framework	- Data transformation and grouping - Aggregation pipeline stages - Aggregation operators
MongoDB CRUD Operations	- Working with documents and BSON types - Insert, update, and delete operations - Querying and filtering documents
Replication and High Availability	- Read/write concerns - Replica set architecture - Failover and elections
Sharding and Scalability	- Balancing and scaling operations - Shard keys and distribution strategy - Sharded cluster architecture
Data Modeling	- Embedding vs referencing - Relationships in MongoDB - Schema design principles
Indexing and Performance Tuning	- Explain plans and diagnostics - Query performance optimization - Index types and usage
Backup, Restore, and Operations	- Monitoring and maintenance - Backup strategies and tools - Restore procedures

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MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions (Q35-Q40):

NEW QUESTION # 35
Which of the following commands finds all the documents in the posts collection with post timestamp field as null?

A. db.posts.find( { post_timestamp: { $fieldtype: 10 } } )
B. db.posts.find( { post_timestamp : { $type; 10 > > )
C. db.posts.find( { post_timestamp: { $type: null } } )
D. db.posts.find( { post_timestamp: { $fieldtype: null } } )

Answer: C

NEW QUESTION # 36
Which of the following are common uses of the mongo shell? Check all that apply

A. Use as a JavaScript framework for your production system
B. Perform administrative tasks
C. Perform queries against MongoDB collections

Answer: B,C

NEW QUESTION # 37
Which mongodb tool is used to report details on number of database operations in MongoDB?

A. mongotop
B. mongodump
C. mongorestore
D. mongostat

Answer: D

NEW QUESTION # 38
Which of the following does MongoDB use to provide High Scalability?

A. Replication
B. Indexing
C. Write Concern
D. Sharding

Answer: D

NEW QUESTION # 39
Which of the following operators is used to updated a document partially?

A. $update
B. $project
C. $modify
D. $set

Answer: D

NEW QUESTION # 40
......

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