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What is the purpose of the spanning-tree algorithm in a switched LAN?

admin2009-05-19  54
问题 What is the purpose of the spanning-tree algorithm in a switched LAN?
选项 A、To provide a monitoring mechanism for networks in switched environments.
B、To manage VLANs across multiple switches.
C、To prevent switching loops in networks with redundant switched paths.
D、To segment a network into multiple collision domains.
E、To prevent routing loops in networks.
答案C
解析 Explanation:
STP is used in LANs with redundant paths or routes to prevent loops in a layer 2 switched or bridged LAN.

Incorrect Answers:
A, B: The primary purpose of STP is to prevent loops, not for monitoring or management of switches or VLANs.

D. VLANs are used to segment a LAN into multiple collision domains, but the STP process alone does not do this.

E. Routers are used to prevent routing loops at layer 3 of the OSI model. STP operates at layer 2.
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