单选题Which of the following is a characteristic of a data center core?（）AServer-to-server traffic always remains in the core layer.BThe recommended practice is for the core infrastructure to be in Layer 3.CThe boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.DThe Cisco Express Forwarding hashing algorithm is the default, based on the IP address and Layer 4 port.ECore layer should run BGP along with an IGP becauseiBGP has a lower administrative distance than any IGP.
单选题
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 and Layer 4 port.
E
Core layer should run BGP along with an IGP becauseiBGP has a lower administrative distance than any IGP.
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