CIS-Discovery Exam Dumps - ServiceNow Certified Implementation Specialist Questions and Answers

Without seeing the specific image, it's challenging to definitively identify the operation. However, based on the options provided, if the image shows an operation that involves interpreting or extracting data from a variable, then "Parse Variable" is the most likely answer. "Parse Variable" is used in ServiceNow Discovery patterns to analyze and extract data from variables collected during the discovery process. References = ServiceNow Discovery documentation, particularly the sections on Discovery Pattern Designer and the various operations that can be used in patterns.

 The Location field for a discovered CI is populated by the Location field of the Discovery Schedule that triggered the discovery of that CI. This is done by the DiscoverySensor script, which gets the location ID from the Discovery Schedule and passes it to the Shazzam probe, which then updates the cidata with the location information. The Location field for a parent CI Type, a Port Probe, or a Discovery Dashboard report does not affect the Location field for a discovered CI.

References: Discovery - How Location field is set for a CI, How to pass discovery schedule fields to a CI record via discovery

London Linux Servers is a CMDB Group with Health Group type. A CMDB Group is a collection of configuration items (CIs) that share common characteristics or are related in some way1. A Health Group is a type of CMDB Group that is used to monitor and measure the health of a specific set of CIs based on predefined rules and metrics2. The image shows that London Linux Servers is selected from the CMDB Health Group List, which is a dropdown menu that displays all the Health Groups defined in the system3. The image also shows the Group Health tab, which displays the health scores and indicators for the selected Health Group.

References: 1: Create a CMDB group - ServiceNow 2: CMDB health groups - ServiceNow 3: CMDB health dashboard - ServiceNow : [View CMDB health scores - ServiceNow]

 CI reclassification is the process of changing the class of a CI in the CMDB based on the discovery data. It can be done manually or automatically, depending on the configuration settings. CI reclassification can result in data loss if the new class has fewer or different attributes than the original class, and the existing attribute values are not preserved or mapped to the new class. This can happen when a CI is switched to a different class hierarchy, such as from a Linux Server to a Windows Server, or when a CI is downgraded to a less specific class, such as from a Database to a Software Instance. Therefore, switching and downgrading have a higher chance of leading to lost data during CI reclassification.

References:

• CI reclassification
• Reclassify CIs
• Configure automatic CI reclassification

A /24 subnet IP Range means that there are 256 possible IP addresses in the range, from 0 to 255. A Shazzam batch size of 5000 means that Discovery will send 5000 ICMP packets at a time to scan the IP addresses. Therefore, Discovery will launch the Shazzam probe once for every 5000 IP addresses in the range, or 256 / 5000 = 0.0512 times. Since the number of times must be an integer, Discovery will round up to 1 and launch the Shazzam probe once. However, since the Shazzam probe is launched for each MID Server that is assigned to the Discovery Schedule, the actual number of times will depend on how many MID Servers are available. If there are N MID Servers, then the Shazzam probe will be launched N times, each sending 5000 ICMP packets to the same IP range. Therefore, the total number of times that the Shazzam probe will be launched during discovery is N * 1 = N.

References:

• Discovery Schedule form
• Shazzam Probe
• Discovery IP range

Horizontal pattern types are used to discover the configuration items (CIs) that belong to a specific category or class, such as infrastructure or application. They define the operations that Discovery performs to identify and classify the CIs, and the attributes that Discovery populates for each CI. Horizontal patterns can be applied to any operating system or platform that supports the required protocols and commands12.

References:

• Horizontal discovery patterns
• Discovery pattern types

For ServiceNow Discovery to detect a Windows device, the Windows Management Instrumentation (WMI) service needs to be running on the host. WMI is a Windows feature that provides a standardized way to access management information about operating system components and services. Discovery uses WMI to query Windows hosts for information about their hardware, software, and system configuration. SSH is used for Unix-like systems, WinRM is an alternative Windows management protocol, and CIM (Common Information Model) is a cross-platform standard; however, WMI is the primary service used for Windows device discovery.

The Set Parameter Value operation is used to assign a value to a variable in a Discovery pattern1. The syntax for this operation is as follows2:

Set Parameter Value: =

The  can be either a constant or an expression. To declare a constant, unchanging value, one must use quotes around the value. For example2:

Set Parameter Value: $name = "John"

This assigns the string “John” to the variable $name. The quotes indicate that the value is a constant and will not change. The other options, hash tag, brackets, and dollar sign, are not used to declare a constant value. They have different meanings in the syntax of the Set Parameter Value operation. A hash tag (#) is used to indicate a comment2. Brackets ([]) are used to access an element of an array or a map2. A dollar sign

 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.

References:

• Correcting MID Server Windows service account user and permissions
• What is a ServiceNow MID Server and how does it work?
• Configure Windows MID Server service credentials

File-based Discovery is a process that helps identify what software is running on your Windows and UNIX servers and devices, even if there is no registration information available. File-based Discovery is triggered in the exploration phase of normal Discovery, after the target device has been classified and identified. File-based Discovery probes execute a scan searching for specific file extensions or file names in paths that you configure. The resulting file information is returned in the probe payload. The sensor attempts to match the discovered files with installed software, using the file name, size, and version returned by the probe.

References: File-based Discovery, File Based Discovery - Support and Troubleshooting