Using the Fully Qualified Domain Name (FQDN) in specifying the SNMP server address is recommended for better network management practices. FQDNs provide a more flexible and reliable method for specifying addresses because they are easier to manage and remember than IP addresses, and they can automatically update if the underlying IP address changes. This is particularly useful in dynamic or complex network environments where IP addresses can change due to DHCP or other factors. Hence, in SNMP integration, it is recommended to use FQDN.