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以下关于DiffServ的说法，不正确的是（ ）。
A.DiffServ最主要的优势是弱化了对信令的依赖
B.DiffServ提供全网端到端的QoS保证
C.DiffServ将QoS的一致性范围缩小到每个区域之中，从而降低了这种模型实现的复杂性。
D.DiffServ无需像IntServ在每个路由器上为每个业务流保留"软状态"，避免了大量的资源预留信息的传递，具有更好的可扩展性
B.DiffServ提供全网端到端的QoS保证
C.DiffServ将QoS的一致性范围缩小到每个区域之中，从而降低了这种模型实现的复杂性。
D.DiffServ无需像IntServ在每个路由器上为每个业务流保留"软状态"，避免了大量的资源预留信息的传递，具有更好的可扩展性
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参考解析
解析：DiffServ的优点：
DiffServ最主要的优势是弱化了对信令的依赖，无需象IntServ在每个路由器上为每个业务流保留"软状态"，避免了大量的资源预留信息的传递，具有更好的可扩展性。
DiffServ不要求实现端到端的QoS保证。
DiffServ将QoS的一致性范围缩小到每个区域之中，从而降低了这种模型实现的复杂性。
DiffServ的缺点：
DiffServ不提供全网端到端的QoS保证，它所提供的QoS只是一种相对的QoS只是不同等级业务流之间的QoS好坏关系，在转发方式上仍然是采用传统IP网的逐跳转发方式。
DiffServ最主要的优势是弱化了对信令的依赖，无需象IntServ在每个路由器上为每个业务流保留"软状态"，避免了大量的资源预留信息的传递，具有更好的可扩展性。
DiffServ不要求实现端到端的QoS保证。
DiffServ将QoS的一致性范围缩小到每个区域之中，从而降低了这种模型实现的复杂性。
DiffServ的缺点：
DiffServ不提供全网端到端的QoS保证，它所提供的QoS只是一种相对的QoS只是不同等级业务流之间的QoS好坏关系，在转发方式上仍然是采用传统IP网的逐跳转发方式。
更多 “以下关于DiffServ的说法，不正确的是（ ）。A.DiffServ最主要的优势是弱化了对信令的依赖 B.DiffServ提供全网端到端的QoS保证 C.DiffServ将QoS的一致性范围缩小到每个区域之中，从而降低了这种模型实现的复杂性。 D.DiffServ无需像IntServ在每个路由器上为每个业务流保留"软状态"，避免了大量的资源预留信息的传递，具有更好的可扩展性” 相关考题
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