MongoDB Perpetuus | Fresco Play

MongoDB Perpetuus | Fresco Play

Monday, May 22, 2023
~ 6 min read
MongoDB Perpetuus | Fresco Play

Question 1: Which is the method used to terminate certain operations after examination

Answer: db.killop()


Question 2: Which is the method in MongoDB removes a one or more roles from a user on the current database

Answer: db.revokeRolesFromUser()


Question 3: Which can be used to check the replica set configuration ?

Answer: rs.conf()


Question 4: Which of the following will help to identify long running queries

Answer: currentop


Question 5: In MongoDB ........ is the operator limits the contents of an array field from the query

Answer: ELEMmatch


Question 6: Which model is used when there is contains relationships between entities

Answer: embedded


Question 7: Which of the following in MongoDB is a system that can help identify inefficient queries and operations.

Answer: profiler


Question 8: Which of the following in MongoDB can limit the size of the result document for a query operation.

Answer: limit()


Question 9: Which method is used to return information for all users associated with a database.

Answer: db.getUsers()


Question 10: Default size of Chunk in MongoDB ___________

Answer: 64MB


Question 11: Find the correct answer from the following In the absence of Primary, replica set cannot accept this operations

Answer: read


Question 12: Which is the method to check the size of the oplog for a given replica set member.

Answer: printrepinfo


Question 13: In MongoDB .............helps to synchronize data across multiple servers.

Answer: Replication


Question 14: Database profiler writes data in --------------

Answer: all


Question 15: ______ can be used to check if the connected node is primary or not?

Answer: db.ismaster


Question 16: The chunk operations performed on background is ______

Answer: Spliting and balancing


Question 17: Which indexes uses planar geometry when returning results.

Answer: 2d Indexes


Question 18: Which of the following is a capped collection

Answer: system.profile


Question 19: Choose the data model which allow applications to store related pieces of information in the same database record

Answer: Embedded Model


Question 20: Which of the following command is used in Determining Indexes Sizes and details of Indexes for Product Collection

Answer: db.Products.stats();


Question 21: In MongoDB these are used to index array data

Answer: Mutikey Index


Question 22: Which is the method used to create Index in MongoDB

Answer: db.ensureIndex()


Question 23: Which is the Index used for muliple fields

Answer: Compound Index


Question 24: Which of the following method is used to create Index in MongoDB

Answer: db.ensureIndex()


Question 25: Find the command which removes the user from the current database.

Answer: db.dropuser()


Question 26: Which is the method used to check the current length of replication lag

Answer: rs.printSlaveReplicationInfo()


Question 27: Which is the command to Check the Size of the Oplog

Answer: rs.printReplicationInfo()


Question 28: In MongoDB identify the command which add an shard with a sharded Cluster

Answer: addShard


Question 29: In MongoDB which is the storage measure used by master's oplog ?

Answer: MB


Question 30: From the following find the background process that keeps chunks from growing too large.

Answer: Splitting


Question 31: The ........... is the command returns a document that provides an overview of the database’s state.

Answer: Serverstatus()


Question 32: nan

Answer: Status


Question 33: Find the command which forces MongoDB to use a particular index for a db.collection.find() operation

Answer: hint()


Question 34: Identify the index type that supports searching for string content in a collection.

Answer: text indexes


Question 35: Find a technique of splitting up a large collection among multiple server

Answer: Sharding


Question 36: Which is the method used in MongoDB to Grant user

Answer: db.grantRolesToUser()


Question 37: In MongoDB explain() option shows the number of documents looked for a query

Answer: nscanned


Question 38: Which of the following in MongoDB provides information for various lock types and lock modes held during the operation.

Answer: system.profile.locks


Question 39: In MongoDB ................. represents the number of times the operation had to wait for the acquireCount.

Answer: system.profile.locks.acquireWaitCount


Question 40: By default MongoDB Automatically logs slow queries above ..... ms to the log

Answer: 100


Question 41: Which will be command to return information on query plans and execution statistics of the query plans

Answer: explain()


Question 42: Choose the indexes to index the content stored in arrays

Answer:  Multikey


Question 43: Which of the following is supported for backing up and restoring of MongoDB deployments

Answer: 1. MMS 2. All the Options


Question 44: Choose the operations that can be captured by database profiler ?

Answer: All the Options


Question 45: Which of the following will controls the amount of logging output that mongod write to the log.

Answer: systemLog.verbosity


Question 46: From the following find which will provides more even data distribution across the sharded cluster

Answer: Horizontal Pationing


Question 47: Which model is used to describe references relationships between documents

Answer: Normalized Model


Question 48: Mongo client will generates ....... command to initiate a new replica set.

Answer: rs.initiate()


Question 49: The ........... is the command returns a document that provides an overview of the database’s state.

Answer: hit()


Question 50: In DataProfiler ........ will shows to indicate there is no index use.

Answer: executionstats.nreturned


Question 51: Which is the Index used for multiple fields?

Answer: Compound Index


Question 52: In MongoDB, these are used to index array data. Choose the correct option(s).

Answer: Mutikey Index


Question 53: Choose the data model which allows applications to store related pieces of information in the same database record.

Answer: All the Options


Question 54: Which of the following can be used to check the status of replica set

Answer: rs.conf()


Post a comment

Comments

Join the conversation and share your thoughts! Leave the first comment.

Get your FREE PDF on "100 Ways to Try ChatGPT Today"

Generating link, please wait for: 60 seconds

Checkout all hot deals now 🔥

Search blogs

No blog posts found