_______ returns the remainder of the first number divided by the second.
None of the mentioned
_________ allows only one agent of each type per machine and will remove additional agents.
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
Setting _______ enables authentication and specifies a key file for the replica set member use to when authenticating to each other.
all of the mentioned
To describe the message structure, a ________ like struct is used.
Backup can also create snapshots of _________ that are run as single-member replica sets.
none of the mentioned
Which of the following document configures the threshold which determines whether a query is “slow” for the purpose of the logging system ?
MongoDB scales horizontally using _________ for load balancing purpose.
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()
MongoDB also supports user-defined indexes on multiple fields called :
Select the correct statement:
High query rates can exhaust the CPU capacity of the server
Database systems with small data sets and high throughput applications can challenge the capacity of a single server
Smaller data sets exceed the storage capacity of a single machine
All of the mentioned
Map-reduce uses custom __________ functions to perform the map and reduce operations.
Running data aggregation on the ________ instance simplifies application code and limits resource requirements.
MongoDB indexes use a _______ data structure.
In which format MongoDb store the data.
To generate pseudo-random data to use for a keyfile, issue the following __________ command.
If you use the localhost exception when deploying a new MongoDB system, the first user you create must be in the ________ database.
The agent ships initial sync and oplog data over HTTPS back to:
Sharded clusters snapshots temporarily stop the balancer via :
Object_Id is similar to _________ key in Relational Databases
Which of the following provide acceptable performance levels for multiple mongod instances?
What would be the maximum document size for results of mapreduce operation ?
Which of the following operator is not very selective ?
Select the correct statement :
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
Replica set configuration requires that the _______ have a value that is consistent among all members of the set.
_____________ is used to initiate relica member set.
Select the wrong statement :
Scaling by adding capacity do not have limitations.
cloud-based providers may only allow users to provision smaller instances
There is a practical maximum capability for vertical scaling
MongoDB supports fixed-size collections called ____________ collections.
With ___________ enabled, MongoDB forces all clients to identify themselves before granting access to the server.