異なる IP アドレスのセットを使用してネットワーク デバイスを管理する必要があるのは次のうちどれですか?
正解:D
Explanation Out of band management is a process for accessing and managing network devices and infrastructure at remote locations through a separate management plane from the production network. Out of band management requires network devices to be managed using a different set of IP addresses than the ones used for in-band management or data traffic. This provides a secure and dedicated alternate access method to administer connected devices and IT assets without using the corporate LAN.