ルーターの WAN インターフェイスに適用される送信 QoS ポリシーが最も効果的なネットワーク条件はどれですか?
正解:A
An outbound QoS policy on a router WAN interface is most beneficial under interface saturation conditions. This is because when an interface becomes saturated, it means that there is more traffic trying to be sent out than the interface can handle. Applying a QoS policy allows for the prioritization of certain types of traffic, ensuring that critical data is transmitted even in times of congestion. It helps manage the traffic flow and reduces the impact of congestion on network performance. References := The Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) course