There are several advantages and disadvantages to why you'd want to use a query based network management
protocol firstly query based protocols are reliable because it's query based.
The network management station is querying or asking for information from a network device.
If the enemies doesn't receive a response from the device that indicates a problem.
The fact that the enemies made a query and didn't get back a response indicates that there is a problem
on the network.
So no response equates to a problem query based also called polling based network management protocols
can be scheduled and you can set how frequently that's done.
So you could pull the network on a very frequent basis or pull the network less frequently to reduce
the impact of the queries on the network.
As an example you may not necessarily want to query a network device every five seconds because of the
overhead that you're putting on the network.
Now in Orion Network Performance Monitor or Ryan NPM also referred in this course to as solar winds
NPM the default setting is two minutes for query based polls for status information and nine minutes
for query based polling for statistics Orion NPM uses both to query and event based protocols.