ServiceNow Discovery – Basics Latest 2024 Graded A

ServiceNow Discovery – Basics Latest 2024 Graded A Discovery finds computers, servers, printers, and a variety of IP-enabled devices, and the applications that run on them. It can then update the CIs in your CMDB with the data it collects. What are the two types of discovery? Horizontal Discovery & Top-down Discovery Horizontal discovery The Discovery application performs horizontal discovery, which means that it finds devices on your network and several attributes about those devices including the operating system, software, memory, and so on. It can also establish relationships between the applications and the device, and between applications. But it does not draw relationships between CIs that are part of specific business services. Top-down discovery Top-down discovery, which is a technique used by Service Mapping, finds and maps CIs that are part of business services in your organization, such as an email service. Service Mapping actually utilizes horizontal discovery to find devices in the scanning and classification phases, and top-down discovery to map business services. What components are used to explore computers and devices (hosts)? Probes & Sensors, and Patterns Probes and sensors Probes and sensors are scripts that collect data on the host, process it, and update the CMDB. Several probes and sensors are provided out of box, but you can also customize them and create custom ones. You can also configure parameters to control the behavior of a particular probe every time it is triggered. A base set of probes and sensors is always used in the first two stages of Discovery. If you are not using patterns, additional probes and sensors are used to identify and explore hosts and the software that runs on them (see Discovery phases). Patterns Patterns are a series of operations that also collect data on a host, process it, and update the CMDB, just as probes and sensors do. Patterns differ from probes and sensors in that they are written in Neebula Discovery Language (NDL) rather than JavaScript, and they are called into action during the last two phases of Discovery. Default patterns are provided, but you can customize or create new patterns using the Pattern Designer. See Create or modify patterns. What are the four phases of Discovery? Scanning / Classification / Identification / Exploration | S.C.I.E Scanning Discovery sends the Shazzam probe to the network to see if specified ports are open on the network and if they can respond to queries. For example, if Shazzam finds a device that responds on port 135, Discovery knows that it is a Windows server. Classification If Discovery finds devices, it continues to send probes to find the type of device at each IP address. For example, Discovery sends the WMI probe to detect Windows 2012 running on a Windows device. Classifiers specify which trigger probes to