ServiceNow CIS-Discovery - Certified Implementation Specialist - Discovery

 Discovery can provide information about the relationships between configuration items (CIs), including applications and hosts. Application relationships are the connections between applications that run on different hosts or servers, such as web servers, databases, load balancers, etc. Host relationships are the connections between applications and the hosts or servers that they run on, such as Windows, Linux, Unix, etc. Discovery can identify these relationships using various methods, such as probes, sensors, patterns, file-based discovery, etc. Discovery can also create and update these relationships in the CMDB, using the Depends on::Used by or Runs on::Runs relationship types.

In the ServiceNow Discovery module, under the Recommended Actions pane for an Automated Error Messages list within Discovery > Home, the possible options under ACTION ON ALL include "View instructions" and "Retry Discovery". "View instructions" allows users to see guidance on how to address the errors, while "Retry Discovery" enables users to reinitiate the discovery process for the affected devices. "Make Ranges" and "Ping IP Addresses" are not standard options in this context.References= ServiceNow Discovery documentation and user guides, particularly those discussing the management of automated error messages and recommended actions in Discovery.

The correct variable syntax to populate a custom column in a horizontal discovery pattern is $cmdb_ci_linux_server.u_custom_column.INSERT. This syntax indicates that the value of the custom column will be inserted into the cmdb_ci_linux_server table for the current CI. The other options are either invalid or incorrect syntaxes for this operation12.

The mid.discovery.max_pattern_payload_size property defines the maximum overall size for the returned payload that comes from patterns. This property is set on the MID Server and applies to all patterns that run on that MID Server. If the payload size exceeds this limit, the pattern execution fails and an error message is logged in the ECC queue. The default value of this property is 10 MB1.

Quick Discovery is a wizard that helps you get up and running with Discovery quickly. It discovers both physical and logical components, including virtual machines, servers, storage, databases, applications, and more. To use Quick Discovery, you need to have a MID Server installed and configured, and provide a target IP range or subnet to scan. You do not need to create a Discovery Schedule or a PID for Quick Discovery.

The Put file operation allows the transfer of a file from the MID Server to a target1. This operation can be used to copy files from the MID Server to a target device, such as configuration files, scripts, or binaries2. The Put file operation requires the file path on the MID Server and the file path on the target as inputs2.