以下关于网络冗余设计的叙述中，错误的是（ ）。
- A.网络冗余设计避免网络组件单点失效造成应用失效
- B.备用路径提高了网络的可用性，分担了主路径部分流量
- C.负载分担是通过并行链路提供流量分担
- D.网络中存在备用路径、备用链路时，通常加入负载分担设计
正确答案及解析
正确答案
B
解析
冗余路径是当正常路由无法使用时，信息包传送的第二条路径。
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