Question

Which of the following is an example of a passive check in Nagios?

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

b) A plugin that checks the CPU load on a host

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

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

Answer 1

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

Reason:A passive check in Nagios is a check that is initiated by an external system, rather than by Nagios itself. An example of a passive check is a plugin that receives data from an external system and updates the status of a service.