Question

Point out the correct statement.

(a) You can limit the number of incoming connections using the maxConnections run-time option

(b) mongos instances maintain a connection pool to each shard so that the mongos can reuse connections

(c) You can use the limit command at the system prompt to check system limits

(d) All of the mentioned

I got this question in an interview for job.

Enquiry is from System Collections topic in section Production Checklist, Security Concepts and Network Security of MongoDB

Answer 1

The correct option is (b) mongos instances maintain a connection pool to each shard so that the mongos can reuse connections

To explain I would say: This would quickly fulfill requests without needing to create new connections.