How to increase Connection pool size in Mongodb and pool size is not showing in command line

db.runCommand( { "connPoolStats" : 1 } )
{
        "numClientConnections" : 0,
        "numAScopedConnections" : 0,
        "totalInUse" : 0,
        "totalAvailable" : 0,
        "totalCreated" : 0,
        "totalRefreshing" : 0,
        "pools" : {

        },
        "hosts" : {

        },
        "replicaSets" : {

        },
        "ok" : 1
}

I am using basic version of Mongodb. I want to some solution.

  1. How can increase connection pool size from default poolsize(100) ?
  2. How can see the mongodb poolsize using c# code or CommandLine ?