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单项选择题Which of the following is a characteristic of a data center core?()

A、 Server-to-server traffic always remains in the core layer.

B、 The recommended practice is for the core infrastructure to be in Layer 3.

C、 The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.

D、 The Cisco Express Forwarding hashing algorithm is the default, based on the IP address andLayer 4 port.

E、 Core layer should run BGP along with an IGP because iBGP has a lower administrativedistance than any IGP.

  • B
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