PDF CIS-Discovery Study Guide

A horizontal pattern is a type of Discovery pattern that discovers configuration items (CIs) and their relationships by moving across the network from one device to another. A horizontal pattern can use the Change user operation to switch from the default credentials to any other appropriate credentials for a specific device or application. This operation allows the pattern to access different types of CIs with different authentication methods.

In ServiceNow Discovery, most properties related to the Discovery module start with the prefix 'glide.discovery'. This naming convention is part of ServiceNow's system property design, where 'glide' typically indicates system properties and 'discovery' specifies that the property is related to the Discovery module. Properties are used to configure various aspects of the Discovery process, such as behavior, timeouts, and performance settings.

Based on the image, the value assigned to the label “Value” is a concatenation of variables and strings. One of the variables is $name_details[1].exec_info, which indicates that $name_details is a tabular variable, meaning an array or a map that can store multiple values1. The [1] is the index or the key that accesses the element of the tabular variable. The .exec_info is the attribute or the property of the element. Therefore, the choice D is true.

The other choices are not true based on the image. The choice A is false because the image does not show any WMI query operation step. A WMI query operation step is a pattern step that executes a WMI query on a Windows device and returns the results as a tabular variable2. The image does not show any WMI query syntax or result. The choice B is false because there is no scalar variable labeled ‘1’. A scalar variable is a variable that can store only one value1. The image shows a label “Value” but not a variable name. The choice C is false because the value can be used in a pattern step. A pattern step is a unit of logic that performs a specific action during Discovery or Service Mapping3. The value can be used as an input or an output of a pattern step, depending on the context.

For discovering Windows Servers, ServiceNow Discovery recommends using credentials that have a domain user account with local administrator access on the target servers. This level of access ensures that Discovery can successfully execute the necessary probes and sensors to collect comprehensive data about the server without being restricted by permission limitations. The other options either provide excessive permissions (like a domain administrator with sudo access) or insufficient privileges (like a standard domain user with read access).