MongoDB MCQ Questions and Answers

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Q11
Which of the following is web-based client software for MongoDB?
  • A BI Studio
  • B Fang of Mongo
  • C Database Master
  • D Mongo3
Answer: Option C
Explanation: Database Master is a web-based client for MongoDB.
Q12
What command is used to insert a document into a collection in MongoDB?
  • A db.collection.put()
  • B db.collection.add()
  • C db.collection.insertDocument()
  • D db.collection.insertOne()
Answer: Option D
Explanation: `insertOne()` adds a single document.
Q13
Which MongoDB command removes all documents from a collection without dropping it?
  • A db.collection.truncate()
  • B db.collection.remove({})
  • C db.collection.delete()
  • D db.collection.drop()
Answer: Option B
Explanation: `remove({})` clears data but keeps the collection.
Q14
Which tool is similar to the UNIX/Linux top utility?
  • A mongofiles
  • B mongooplog
  • C mongotop
  • D mongosniff
Answer: Option C
Explanation: `mongotop` monitors read/write activity.
Q15
Which of the following network analyzer fully supports MongoDB?
  • A Suricata
  • B Snort
  • C Riakshark
  • D Wireshark
Answer: Option D
Explanation: Wireshark supports MongoDB protocol analysis.
Q16
Which utility is used to import JSON, CSV, or TSV into MongoDB?
  • A mongosupport
  • B mongorestore
  • C mongoimport
  • D mongofiles
Answer: Option C
Explanation: `mongoimport` loads data into collections.
Q17
Which tool creates a binary export of MongoDB contents?
  • A mongofiles
  • B mongodump
  • C mongoimport
  • D mongosupport
Answer: Option B
Explanation: `mongodump` creates a binary backup.
Q18
What is the purpose of MongoDB's replication feature?
  • A High availability by creating multiple copies
  • B To improve query consistency
  • C To backup data externally
  • D To distribute data regionally
Answer: Option A
Explanation: Replication = copies of data across servers.
Q19
Which of the following file is not a MongoDB configuration file?
  • A mongodb.conf
  • B mongodb.con
  • C mongod.conf
  • D none of the mentioned
Answer: Option B
Explanation: Correct config file = `mongod.conf`.
Q20
What is the default port for MongoDB?
  • A 3306
  • B 8080
  • C 5432
  • D 27017
Answer: Option D
Explanation: Default MongoDB port = 27017.

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