OSI モデルのレイヤー 2 の機能を最もよく説明しているものは次のうちどれですか? (2 つ選択してください)。
正解:A,D
Explanation Layer 2 of the OSI model, also known as the data link layer, is responsible for physical addressing and error detecting. Physical addressing refers to the use of MAC addresses to identify and locate devices on a network segment. Error detecting refers to the use of techniques such as checksums and CRCs to identify and correct errors in the data frames. References: OSI Model | Computer Networking | CompTIA1