Final Answer:
The supported method of filtering monitor inputs with whitelists or blacklists is Using IP addresses.
Thus the correct option is (2).
Step-by-step explanation:
When configuring monitor inputs with whitelists or blacklists, utilizing IP addresses (option 2) is the supported and common method for filtering. This method allows administrators to specify specific IP addresses that are either allowed (whitelisted) or denied (blacklisted) access. IP addresses serve as unique identifiers for devices on a network, providing a precise and efficient means of controlling access to monitoring resources.
Unlike options such as regular expressions (option 1), MAC addresses (option 3), or domain names (option 4), using IP addresses offers a straightforward and standardized approach to filtering. IP addresses are integral to networking protocols and are easily managed within firewall rules or access control lists. This simplifies the implementation and maintenance of monitor input configurations, enhancing the overall manageability and effectiveness of access control.
In summary, choosing IP addresses as the filtering method aligns with best practices in network security and access control. It provides a clear and robust mechanism for defining whitelist or blacklist entries, contributing to the secure and controlled operation of monitoring systems.
Thus the correct option is (2).