CIS-Discovery Exam Dumps : Certified Implementation Specialist - Discovery

 The Service Account for the MID Server must have the Log on as service right on the Windows platform. This right allows the MID Server to run as a Windows service and communicate with the ServiceNow instance. The Service Account does not need to have local or domain admin rights, as these are not required for the MID Server functionality. The MID Server User Role is a role on the ServiceNow instance, not on the Windows platform, and it is used to control the access and permissions of the MID Server on the instance.

Variables are used in discovery patterns to store and manipulate data that is collected or calculated during the discovery process. There are three kinds of variables used in discovery patterns12:

CI attributes: These are variables that correspond to the attributes of the configuration item (CI) type that the pattern is discovering. For example, name, serial_number, manufacturer, etc. CI attributes are used to populate the CI record in the CMDB with the information gathered by the pattern.

Temporary: These are variables that are created and used within the pattern, but are not stored in the CMDB. For example, $result, $output, $user_var, etc. Temporary variables are used to store and manipulate data such as the output of a command, the value of a parameter, or the result of a calculation.

Global: These are variables that are defined in the global scope and can be accessed by any pattern. For example, $mid, $target, $ip_address, etc. Global variables are used to store and access data that is common to all patterns, such as the MID Server, the target device, or the IP address.

 The WMI service is a Windows service that enables remote management of Windows devices using the WMI protocol. The WMI service is required for Discovery to access the configuration and status information of Windows devices using WMI queries. If the WMI service is not running on a host, it will prevent the discovery of Windows devices, as Discovery will not be able to communicate with the WMI Collector or execute WMI queries on the target device123.