What must be added to classifiers to use a pattern for horizontal discovery?

When implementing horizontal discovery in ServiceNow, it's essential to enhance classifiers with the appropriate tools that enable the identification of systems and components within a network. The correct choice, a horizontal pattern probe, is designed specifically for this purpose.

By adding a horizontal pattern probe to classifiers, the discovery process can identify services and applications that may be distributed horizontally across multiple servers or environments. This is particularly useful for discovering applications that operate in a load-balanced or clustered configuration, where the same service may be deployed across multiple instances.

The horizontal pattern probe facilitates the depth of scanning and ensures that the discovery process recognizes the various layers and components involved in horizontal architecture. Without this probe, the discovery might miss critical aspects of the service spread across different systems, leading to incomplete or inaccurate data.

Other options do not fulfill this specific role. Identification probes, while essential for recognizing individual CI types, do not specifically enable horizontal discovery functionalities. Similarly, the discovery module encompasses the overall discovery process but isn't a specific enhancement for classifiers. A reporting tool primarily serves data analysis and visualization needs rather than directly contributing to the discovery process itself.

In summary, the addition of a horizontal pattern probe to classifiers is crucial for effectively executing horizontal discovery, ensuring comprehensive visibility across distributed systems and applications.