ServiceNow CIS-Discovery Practice Test - Questions Answers, Page 6

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: <Variable Name> = <Value>

The<Value>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 SNMP Query pattern operation executes an SNMP query on a target device and stores the results in a variable. The Variable Type field determines the format of the results. There are two valid Variable Types for this operation: Table and Scalar. Table is used when the query returns multiple values, such as a list of interfaces or processes.Scalar is used when the query returns a single value, such as the system name or uptime12.

SNMP Query pattern operation - Product Documentation: San Diego - Now Support Portal

SNMP Query pattern operation - Product Documentation: Vancouver - ServiceNow

When Discovery or Service Mapping identifies a CI that matches an existing CI in the CMDB, it checks whether the CIs are duplicates or not. If they are duplicates, Discovery adds them to a de-duplication task, which is a record that groups duplicate CIs and allows you to review and remediate them. You can use the Duplicate CI Remediator wizard to merge, flag, retire, or delete the duplicate CIs. By default, Discovery does not send notifications, create identification rules, or stop the next discovery for duplicate CIs.

A horizontal discovery pattern is a set of steps that execute operations to identify, classify, and populate attributes for configuration items (CIs) of a specific category or class, such as infrastructure or application.A horizontal pattern can be applied to any operating system or platform that supports the required protocols and commands12.

Horizontal discovery patterns

Discovery pattern types