Acustomerhas20E1stoaddbetweenfar－endnodesinanSNCPring.Whattypeofcircuitwouldyourecommend?()A.LO-PATHcircuitsB.HO-PATHcircuitsC.1：1protectioncircuitsD.1：NprotectioncircuitsE.LO-PATHtunnelcircuits
题目
Acustomerhas20E1stoaddbetweenfar－endnodesinanSNCPring.Whattypeofcircuitwouldyourecommend?()
A.LO-PATHcircuits
B.HO-PATHcircuits
C.1：1protectioncircuits
D.1：Nprotectioncircuits
E.LO-PATHtunnelcircuits