Select the correct statement :
MongoDB cannot be used as a file system
MongoDB can run over single servers only
Embedded documents and arrays reduce need for joins
None of the mentioned
Which of the following operator is not very selective ?
The ________ message is used to update a document in a collection.
All of the mentioned
_________ allows only one agent of each type per machine and will remove additional agents.
_____________ is used to initiate relica member set.
none of the mentioned
_______ returns the remainder of the first number divided by the second.
all of the mentioned
Point out the correct statement :
Config servers are not replica sets
Sharding requires a number of mongod instances with different configurations
The config servers store the cluster’s metadata, while the cluster distributes data among one or more shard servers
The __________ method returns a document that includes a metrics field.
Ops Manager _________ provides an interface for configuring MongoDB nodes and clusters and for upgrading your MongoDB deployment.
Instance exits cleanly is represented by ___ exit code
Use __________ to encrypt communication between mongod and mongos components of a MongoDB client as well as between all applications and MongoDB.
GridFS uses a _________ index on the chunks collection for the files_id and n fields.
If your storage system does not support snapshots, you can copy the files directly using :
To describe the message structure, a ________ like struct is used.
Object_Id is similar to _________ key in Relational Databases
What would be the maximum document size for results of mapreduce operation ?
________ subtracts two dates to return the difference in milliseconds
MongoDB scales horizontally using _________ for load balancing purpose.
______________ specifies the number of documents to return in each batch of the response from the MongoDB instance.
MongoDB is classified as a NoSQL database
MongoDB favours XML format more than JSON
MongoDB is column oriented database store
In MongoDB, _________ operations modify the data of a single collection.
MongoDB stores all documents in :
$ne returns true if the values are not _______
Ops Manager reads directly from the Backup Blockstore database and transfers files either through :
Map-reduce uses custom __________ functions to perform the map and reduce operations.
Point out the wrong statement :
MongoDB Cloud Manager Backup offers point in time recovery of MongoDB replica sets
MongoDB Cloud Manager continually backs up MongoDB replica sets
MMS achieves point in time recovery by storing oplog data
If you use the localhost exception when deploying a new MongoDB system, the first user you create must be in the ________ database.
Which of the following query is used to generate a new ObjectId, use the ObjectId() constructor with no argument
x = ObjectIdAdd()
x = addObjectId()
x = ObjectId()
Secondary indexes allow applications to store a view of a portion of the collection in an efficient data structure
MongoDB has full support for secondary indexes
Most indexes store an ordered representation of all values of a field or a group of fields