Pass the ServiceNow Certified Implementation Specialist CIS-Discovery Questions and answers with CertsForce

SNMP credentials are used by Discovery to communicate with devices that support the Simple Network Management Protocol (SNMP). SNMP credentials do not include a user name, just a password, called the community string. The default read-only community string for many SNMP devices is public, and Discovery will try that automatically. Enter the appropriate SNMP credentials if they differ from the public community string1.

References: 1: SNMP credentials - Product Documentation: Utah - Now Support Portal

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]

The Application Pattern Type is a pattern that discovers applications and their dependencies by using probes and sensors1. It has two main components: the Run Order and the Identification Section2. The Run Order defines the sequence of probes and sensors that Discovery uses to find and classify CIs2. The Identification Section specifies the criteria that Discovery uses to identify CIs and their relationships2. The other options, CI Type and Operating System, are not specific to the Application Pattern Type. They are used for other pattern types, such as the Horizontal Pattern Type and the Service Mapping Pattern Type3 .

References: 1: Application Pattern Type 2: Application Pattern Type components 3: Horizontal Pattern Type : Service Mapping Pattern Type

One method for deleting specific CIs not discovered in 30 days is to use a scheduled job that runs a script to query the CMDB for CIs that have not been updated by Discovery for a certain period of time, and then delete them or mark them as retired. This method can help you keep your CMDB clean and accurate, and avoid having stale or obsolete CIs. You can configure the scheduled job to run at a specific frequency and time, and specify the criteria for selecting the CIs to delete.

References: Automated way to disable/retire CIs not updated for 45 days, ServiceNow CIS-Discovery Sample Questions

According to the ServiceNow website1, the key capabilities of a ServiceNow ITOM Enterprise solution are:

Manage hybrid clouds: Gain visibility and control across your hybrid cloud environment with a single system of action for IT.

Proactively eliminate service outages: Identify issues and anomalies before they cause service outages with AIOps and machine learning.

Automate IT service operations: Automate common service requests, processes, and tasks with digital workflows and virtual agents.

Optimize IT service delivery: Align your IT resources and investments with business priorities and optimize service delivery performance.

References:

1: ITOM - Enterprise IT Operations Management - ServiceNow

CI identifiers can be viewed under the CI record1. A CI identifier is a set of attributes that uniquely identify a CI of a specific class2. CI identifiers are used by the identification and reconciliation engine (IRE) to match incoming data with existing CIs in the CMDB3. CI identifiers can be viewed and edited in the CI record by clicking the Identification Information related link1.

References:

1: View and edit CI identifiers

2: Create or edit a CI identification rule

3: Identification rules

 A scheduled job is a background process that runs at a specified time or interval to perform a specific task1. It is not a method for deleting specific CIs that are not discovered in 30 days. The other options are methods for deleting or updating CIs based on discovery data. A UI policy is a script that can dynamically change the behavior of a form or list2. A service mapping is a process that creates a map of the relationships between CIs that support a business service3. A data policy is a rule that enforces data consistency and accuracy by validating the data entered into a record.

References: 1: Scheduled Jobs 2: UI Policies 3: Service Mapping : Data Policies

The ECC Queue tab displays the input and output messages from and to MID Servers. The default fields that are displayed on this tab are:

Topic: The topic of the message, such as Discovery, Orchestration, or MID Server.

Queue: The queue name of the message, such as input, output, or error.

Source: The source of the message, such as the MID Server name, the instance name, or the probe name.

State: The state of the message, such as ready, processed, or ignored.

Created: The date and time when the message was created.

Updated: The date and time when the message was last updated.

Some other fields that can be added to the ECC Queue tab are:

Details: The details of the message, such as the payload, the response, or the error message.

Pattern log link: The link to the pattern log file, if the message is related to a pattern execution.

CMDB CI: The configuration item that is associated with the message, if any.

Discovery schedule name: The name of the discovery schedule that triggered the message, if any.

References: ECC Queue Processing and Debugging, with “Discovery - Sensors” used as an example, The ECC queue for Discovery

To create a custom horizontal pattern to discover an operating system that is not discovered by the base installation patterns, the following steps are necessary1:

Select a CI Type: This defines the type of configuration item (CI) that the pattern will discover and create or update in the CMDB. For an operating system, the CI Type should be Operating System or a subtype of it.

Select Infrastructure Pattern Type: This defines the type of pattern that will be used to discover the CI. For an operating system, the Infrastructure Pattern Type should be Operating System or a subtype of it.

Define the pattern logic: This consists of adding operations, variables, and conditions to the pattern to specify how the discovery process will identify and classify the operating system. For example, the pattern can use probes and sensors to query the target device for information such as name, version, vendor, etc.

Test and publish the pattern: This involves verifying that the pattern works as expected and does not cause any errors or conflicts with other patterns. Once the pattern is tested, it can be published and activated for discovery.

References: 1: Create a horizontal discovery pattern - ServiceNow

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).