D-PDD-DY-01: Dell PowerProtect Data Domain DeployDemo

SNMPv3 introduces user-based security with authentication (and optional encryption/privacy), making it the secure choice for polling device status, unlike SNMPv2c which uses unencrypted, easily guessed community strings. SNMP polling normally operates over UDP port 161, not port 25 (which is used by SMTP), so that option is technically invalid. Configuring default traps to a trap host relates to the appliance proactively sending alerts, not to a monitoring tool polling the appliance, so it does not address the requirement. Dell PowerProtect Data Domain documentation recommends using SNMPv3 with authentication (and privacy) for secure SNMP management access.