MongoDB MCQ Questions and Answers
MongoDB MCQ Questions with Answers are designed to test your understanding of NoSQL database concepts, document storage, and CRUD operations. These programming questions and answers help students prepare for technical interviews and certification exams. Practicing MongoDB MCQs enhances your ability to handle real-world data models and query optimization, making you job-ready for placements at TCS, Infosys, and Cognizant.
MongoDB MCQ
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43 questions
31. Which command returns quickly without impacting performance?
- dbStats
- db.stats()
- db.serverStatus()
- none of the mentioned
32. Which should be avoided with MongoDB deployments?
- RAID-0
- RAID-7
- RAID-10
- RAID-5
34. Which provides information on the MongoDB instance?
- serverInfo
- executeStats
- queryPlanner
- none of the mentioned
35. Which method is used for managing users?
- db.User()
- db.superuser()
- db.createUser()
- none of the mentioned
36. Default authentication method in MongoDB?
- LDAP
- SCRAM-SHA-1
- MONGODB-CR
- None of the mentioned
37. If `.mongorc.js` exists, which file will be evaluated on shell startup?
- .mongorc.js
- .mongo.js
- .mongorc.jscript
- all of the mentioned
38. For which server-side operations does MongoDB support JavaScript execution?
- group
- mapreduce
- where
- all of the mentioned
39. Database command for mapreduce function?
- redmap
- mapReduce
- mapperRed
- none of the mentioned
40. Which stage cannot appear multiple times in a pipeline?
- $reg
- $out
- $regex
- $match