11.) Which command is used to create a Time-series Collection in MongoDB?
A) db.createTSCollection()
B) db.createTimeSeries()
C) db.createTS()
D) db.createCollection()
12.) Which command is used to retrieve a file from GridFS?
A) fs.chunks.retrieve()
B) gridfs.retrieve()
C) fs.files.retrieve()
D) mongofiles
13.) Which of the following is true about Change Streams?
A) They can monitor changes to a single collection
B) They can monitor changes to an entire database
C) They can monitor changes to a replica set
D) All of the above
14.) What is the purpose of the fs.files collection in GridFS?
A) To store metadata about files
B) To store the actual file data
C) To compress files
D) To encrypt files
15.) Which of the following is true about MongoDB Transactions?
A) They are atomic at the single-document level
B) They are atomic at the multi-document level
C) They are not atomic
D) They are used for compressing data
16.) What is the purpose of the fs.chunks collection in GridFS?
A) To store metadata about files
B) To compress files
C) To store the actual file data
D) To encrypt files
17.) Which of the following is true about Time-series Collections?
A) They automatically expire data after a certain period
B) They are not optimized for time-series data
C) They are used for encrypting data
D) They are used for compressing data
18.) Which command is used to insert a file into GridFS?
A) fs.chunks.insert()
B) gridfs.insert()
C) fs.files.insert()
D) mongofiles
19.) What is the purpose of the withTransaction() method in MongoDB?
A) To compress data
B) To execute a transaction
C) To encrypt data
D) To back up data
20.) Which of the following is true about GridFS?
A) It stores files in two collections: fs.files and fs.chunks
B) It compresses files
C) It encrypts files
D) It backs up files
Related
