A customer has 20 E1s to add between far-end nodes in an SNCP ring. 
What type of circuit would you recommend？（）

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

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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

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