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Why is STP required when VLANs span access layer switches?（）

单选题
2023-02-03 00:38
A、to ensure a loop-free topology
B、to protect against user-side loops
C、in order to support business applications
D、because of the risk of lost connectivity without STP
E、for the most deterministic and highly available network topology
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正确答案
B
试题解析
标签： CCDP(642-873)
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