Question

Which of the following is an example of an active check in Nagios?

a) A plugin that checks the disk space usage on a host

b) A plugin that receives data from an external system and updates the status of a service

c) A plugin that connects to a network service and checks its availability

d) A plugin that monitors the log files on a host for specific events

Answer 1

Solution: a) A plugin that checks the disk space usage on a host

Reason:An active check in Nagios is a check that is initiated by Nagios itself, rather than by an external system. An example of an active check is a plugin that checks the disk space usage on a host.