ServiceNow Certified Implementation Specialist - Discovery CIS-Discovery Exam Questions

Answer : A, B, D

A is true because the target table $cmdb_ci_web_server is a ServiceNow CMDB table that stores information about web servers1.

B is true because the merge table operation is typically used for application patterns, which are horizontal patterns that discover applications and their dependencies. The condition on the process.executablePath variable suggests that the operation is looking for a specific application (mongoose) running on the web servers.

D is true because the merge table operation requires at least one matching field value between the two source tables1. In this case, the process.executablePath variable is the matching field, and it must contain ''mongoose'' for the operation to run.

1: Merge tables - Product Documentation: San Diego - Now Support Portal

3: Product Documentation | ServiceNow

[4]: Discovery Patterns - Product Documentation: San Diego - Now Support Portal

Answer : A, B, D

In a Merge Table pattern operation within ServiceNow Discovery, the editable fields typically include the Target Table, Second Table, and First Table. These fields are configurable and allow users to specify the tables involved in the merge operation. The Target Table is where the merged data will be stored, while the First and Second Tables are the source tables whose data is being merged. The Primary Table is not typically an editable field in this context. Reference = ServiceNow Discovery documentation, particularly the sections discussing pattern design and operations, including Merge Table operations within Discovery Patterns.

Answer : D

The $process.executableDir expression correctly calls the value of the executableDir variable from the tabular process variable. The process variable is a tabular variable that contains the output of the ps command, which lists the processes running on a CI. The executableDir variable is a column name that holds the directory path of the executable file for each process.To access the value of a column name from a tabular variable, you need to use the dot notation, such as $variable.columnName12.

Reference 1: Pattern variables - Product Documentation: Tokyo - Now Support Portal 2: Examples of EVAL scripts used in Discovery patterns - ServiceNow

Answer : D

An extension section of a discovery pattern is a section that allows you to modify or extend the functionality of an existing pattern without customizing it. An extension section can contain shared libraries, which are reusable code snippets that can be invoked from any pattern or extension section. Shared libraries can be used to define common functions, variables, or constants that are used across multiple patterns or extension sections.Shared libraries can also be used to override the default behavior of some built-in functions, such as identification or classification12.Reference=1: ITOM: Extending Discovery/Service Mapping Patterns - GlideFast ServiceNow2: How to Create Discovery Pattern Extensions and Why to Use Them

Answer : B, D

In the ServiceNow Discovery module, under the Recommended Actions pane for an Automated Error Messages list within Discovery > Home, the possible options under ACTION ON ALL include 'View instructions' and 'Retry Discovery'. 'View instructions' allows users to see guidance on how to address the errors, while 'Retry Discovery' enables users to reinitiate the discovery process for the affected devices. 'Make Ranges' and 'Ping IP Addresses' are not standard options in this context. Reference = ServiceNow Discovery documentation and user guides, particularly those discussing the management of automated error messages and recommended actions in Discovery.

Answer : B

A horizontal discovery pattern is a sequence of operations that collects information about a specific type of configuration item (CI), such as an operating system, a database, or a web server1.A horizontal discovery pattern does not use the connectivity section, which is only used for the application pattern type2.The connectivity section defines how to connect to a CI and run commands on it3.A horizontal discovery pattern uses the following sections1:

Variables: Defines the variables that store the data collected by the pattern and map them to the target table fields.

Identification: Defines the criteria to identify a CI and update or create a record in the CMDB.

Operations: Defines the actions to perform on the target CI, such as running commands, querying databases, or parsing files.

Answer : D