What is the purpose of the Spanning Tree Protocol (STP)?

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问题 What is the purpose of the Spanning Tree Protocol (STP)?

选项 A、To prevent routing loops
B、To create a default route
C、To provide multiple gateways for hosts
D、To maintain a loop-free Layer 2 network topology
E、To enhance the functions of SNMP

答案D

解析 Explanation:
STP’s main task is to stop network loops from occurring on your Layer 2 network (bridges or switches). It vigilantly monitors the network to find all links, making sure that no loops occur by shutting down any redundant ones. STP uses the spanning-tree algorithm (STA) to first create a topology database, then search out and destroy redundant links. With STP running, frames will only be forwarded on the premium, STP-picked links.

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【B1】【B2】

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What is the purpose of the Spanning Tree Protocol (STP)?

思科640802

思科认证

Everytwoweeksalanguagedisappears.By2100nearlyhalfofthe6,000spokentodaymaybegone.Migration,eitherbetweencoun

BendItLikeBeckhamiswelcome.ItisthestoryofaBritishgirlnamedJesswhomustchoosebetweenthetraditionsofherfami

Fastingglucose(葡萄糖)andinsulin(胰岛素)levelsremainwithinnormalrangeforwomenusinginjectableororalcontraception,withonl

Cancerisusedgenericallyformorethan100differentdiseases,includingmalignanttumoursofdifferentsites,suchasbreast,

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某县中学教师李某对学校给予他的处分不服，李某可以提出申诉的机构是()。

A、8B、33C、84D、85D规律为：第一列数字×第三列数字+1=第二列数字。所以?=6×14+1=85。故本题答案为D。

【B1】【B2】

建安工程合同价包括直接费、间接费等，按国际惯例，属于索赔费用间接费的有(　　)。