Which field must be completed in Cisco DNA Center when a network discovery is initiated?

While an SNMP read community string is a common credential used during discovery to gather device information, it is not universally mandatory for initiating the discovery itself, as other credential types (e.g., CLI) can also be used.

The enable password is a part of CLI credentials, which are often used for discovery, but it is one of several credential fields that are provided after the discovery type has been selected, not a standalone mandatory field for initiating the discovery.

The NETCONF port is a protocol-specific configuration detail and is not a top-level mandatory field that must be completed to simply initiate a network discovery in Cisco DNA Center.

When initiating a network discovery in Cisco DNA Center, the "Discovery type" is a mandatory field that defines the method or strategy for finding devices, such as by IP range, seed device, or using CDP/LLDP, which is fundamental for the discovery process to proceed.