Which parameter must be added to the name resolve order directive in Samba for broadcasts?

The parameter to be added to the name resolve order directive in Samba for broadcasts is "bcast." This directive allows Samba to utilize broadcast messaging to resolve hostnames within the network. When client systems on a local network are configured to use broadcasts, they send out requests to all devices in the subnet to resolve names to IP addresses. This is particularly useful in smaller or simpler networks where centralized name resolution services like DNS or WINS are not deployed.

While other options such as "dns," "lmhosts," and "wins" refer to specific name resolution methods, they do not cover the broadcast mechanism provided by the "bcast" parameter. DNS relies on a hierarchical system of servers to resolve domain names, lmhosts involves a local text file for name resolution, and WINS is a Microsoft proprietary service for resolving NetBIOS names. Each of these serves a different purpose within the context of network name resolution, but for enabling broadcast resolution, "bcast" is the designated option.