单项选择题

A. Never peer on transit links.B. Build squares for det……

ou are the Cisco Network Designer in Cisco.com. Which of these practices should you followwhen designing a Layer 3 routing protocol？（）

A. Never peer on transit links.
B. Build squares for deterministic convergence.
C. Build inverted U designs for deterministic convergence.
D. Summarize routes at the distribution to the core to limit EIGRP queries or OSPF LSA propagation.

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