フリー問題

問題文

To save typing, the community that names members can be derived from the overlay instance value by rule. Which option is correct about the width of the global administrator part, about the reading of the single bit at the head of the other part, and about the width of the service identifier part?

選択肢

1. About deriving that community by rule the global administrator part takes up a pair of octets, the single bit at its head reads unity when derived by rule, and the service identifier part runs to a duet of octets, as the framework sets out.
2. About deriving that community by rule the global administrator part takes up a pair of octets, the single bit at its head reads nought when derived by rule, and the service identifier part runs to a trio of octets, as the framework sets out.
3. About deriving that community by rule the global administrator part takes up a sextet of octets, the single bit at its head reads nought when derived by rule, and the service identifier part runs to a duet of octets, as the framework sets out.
4. About deriving that community by rule the global administrator part takes up a sextet of octets, the single bit at its head reads unity when derived by rule, and the service identifier part runs to a trio of octets, as the framework sets out.