You cannot register more than one record with the same combination of Name and Type (create two "www.example.jp/A”s and register a value with each of them).

You can register more than one Value for each combination of Name and Type (create one "www.example.jp/A" and register two values with it). Note that there are some record types, such as SOA and CNAME, for which registration of multiple Values is restricted. Refer to "Record Management" for more information.