单项选择题
Click the Exhibit button. As shown in the exhibit， a customer has several interconnected core rings. They want to create several irtual rings？utilizing their STM-64 backbone （nodes 1， 2， 3， and 4）.
What do you recommend？ （）
A. SNCP rings
B. MS-SPRing rings
C. 1：N protection on all core circuits
D. dual-ring interconnect with MS-SPRing rings
相关考题
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单项选择题
A customer has 2 E1s to add between far-end nodes in an SNCP ring. What type of circuit should you recommend？ （）
A. LO-PATH circuits
B. HO-PATH circuits
C. 1：1 protection circuits
D. 1：N protection circuits
E. LO-TUNNEL tunnel circuits -
单项选择题
WhatisthecorrectrelativeswitchingpriorityinanMS-SPRingring（highertolower）？（）
A. signal fail， signal degrade， manual switch
B. signal degrade， signal fail， manual switch
C. protection lockout， manual switch， path AIS
D. forced switch， manual switch， signal degrade
E. protection lockout， manual switch， forced switch -
单项选择题
WhatprotocolenablesEthernetoverSONET/SDHencapsulationinteroperabilitybetweentheG-seriesandML-seriesEthernetcards？（）
A. LEX
B. HDLC
C. GFP-F
D. PPP/BCP
