フリー問題

問題文

The far edge rejects an update because the length of the hop field disagrees with what it finds there. Which statement about the length when the global value stands alone, about the length when the local value joins it, and about what stands in for a missing global value is correct?

選択肢

1. In that same document the length of the hop field is thirty four when the global value stands alone, it is sixty six when the local value joins it, and a missing global value is marked by the unspecified value, as it states.
2. In that same document the length of the hop field is thirty four when the global value stands alone, it is forty eight when the local value joins it, and a missing global value is marked by the reserved value, as it states.
3. In that same document the length of the hop field is twenty four when the global value stands alone, it is sixty six when the local value joins it, and a missing global value is marked by the reserved value, as it states.
4. In that same document the length of the hop field is twenty four when the global value stands alone, it is forty eight when the local value joins it, and a missing global value is marked by the unspecified value, as it states.