B.nIn 1+1 T-MPLS path protection structure, if a unidirectional fault (transmission direction from node A to Z) occurs to working connection, it will be detected at sink node Z of protecting domain and then node Z selector will switch to protection connectio
C.n1+1 T-MPLS path protection is of unidirectional switching type -- that is to say, only the affected end needs to switch to the protection path and selectors at the two ends are relatively independent.
D.nIn 1+1 T-MPLS path protection structure, to avoid single-point fault, working connection and protection connection should run along isolated routes.
A.DCC值班员和值班主任
B.DCC值班员和行调
C.DCC电力值班员和行调
D.DCC电力值班员和行调
A.人民币交易金额和外币交易金额
B.人民币交易金额和货币转换手续费率
C.VISA基准汇率和货币转换手续费率
D.VISA基准汇率和商户结算手续费率
A.DCC交易可以选择使用人民币金额获取预授权,也可以选择使用持卡人所选外币获取预授权
B.DCC交易中如持卡人选择外币,则打印出的签购单只显示所选的外币金额
C.在进行预授权完成时,由系统自动判断卡号是否支持DCC
D.DCC消费交易中,如持卡人不选择外币,则只能将该笔消费交易撤销,重新刷卡或插卡