通信を開始するためにトラフィックの受信を必要とするサイレントホストの接続ニーズに対応するために、Cisco SD-Accessファブリック全体でARPブロードキャストおよびリンクローカルフレームを伝播するために使用される機能はどれですか。
正解:B
Layer 2 Flooding is used in Cisco SD-Access to address the connectivity needs of silent hosts. Silent hosts are devices that do not initiate communication but require reception of traffic to start communicating. In a Cisco SD-Access fabric, these hosts' locations are not known because they have not sent any packets or frames. To ensure connectivity for these devices, Layer 2 Flooding can be enabled, which allows ARP broadcasts and link-local frames to be propagated across the fabric. This ensures that even if a silent host has not initiated communication, it can still receive traffic, which is essential for devices like IP cameras, sensors, or management interfaces that wait for an initial packet to begin communication.