QoS中，Differentiated Service与Integrated Service的主要区别是（）

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• IBM LTO-5 can be differentiated from HP LTO-5 thru all of the following features EXCEPT.（）

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• QOS中Precedence Classes分为哪些等级？（）

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• How can dedicated processors be differentiated from virtual processors from a physical processor viewpoint?（）

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• 在GPRS中QoS参数包括服务的（）。

  A . 优先级别 B . 延时级别 C . 可靠性级别 D . 峰值吞吐量级别 E . 平均吞吐量级别

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• 在QoS中，流量整形的典型作用是（）。

  A . 调整TCP流量 B . 消灭流量的突发 C . 调整流的输出，比如使之符合下游路由器所承诺的访问速率 D . 解除拥塞

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• LTE中QoS参数包括（）。

  A . QCI B . ARP C . GBR D . AMBR

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• 在设计新业务承载网时，QoS的设计和部署往往是设计的关键所在，请问在下列的业务中，（）应该具有最高的QoS等级。

  A . NGN语音 B . 3G语音 C . 3G数据 D . 以上都不是

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• 在GPRS和EDGE系统中，业务质量可通过QoS参数来控制，系统经过QoS协商来为用户提供灵活的服务等级。目前采用的QoS参数包含列哪些参数：（）。

  A . A、服务优先等级 B . B、时延等级 C . C、可靠性等级 D . D、峰值吞吐量等级 E . E、平均吞吐量等级 F . F、用户接入等级

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• QoS是从ATM技术中发展起来的。

  A . 正确 B . 错误

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• QoS中，CQ的缺点主要有（）。

  A . 不能根据报文的优先级决定调度权重 B . 每一个单一的队列都拥有FIFO队列的所有缺点 C . 带宽分配不准确 D . 产生抖动

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• 服务质量（QoS）技术涉及三方面：一是（）、单一网络单元中的QoS和QoS策略、管理和计费功能。

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• 了解IP数据网的延迟对于调整QoS参数，保障NGN和3G语音的QoS特性很重要，请问下列时延中，哪些时延是可能通过调整、配置QoS参数提高的？（）。

  A . 排队时延 B . 编解码时延 C . 网络时延 D . 抖动缓存时延

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• Differentiated Service的端到端QoS保障通过以下一些技术来实现（）。

  A . CAR B . GTS C . 队列机制 D . 拥塞避免

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• QoS中，CAR利用（)实现流量监管。

  A．令牌桶 B．令牌环 C．优先级队列 D．公平队列

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• Your company has an Active Directory Domain Servic es （AD DS) domain. All servers run Wind

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• differentiated

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• This product is guaranteed by Philips for a period of one year after the date of purchase against defects due to faulty workmanship or materials. The guarantee covers both parts and labor. Servic

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