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【多选题】

影响VOIP QOS 的指标有哪些（）     

A、 带宽/吞吐量

B、 时延

C、 抖动

D、 丢包率

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更多“影响VOIP QOS 的指标有哪些（）     ”相关的问题
第1题
[简答题] What is the three main step of using the QoS feature with MQC command line interface？

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第2题
[] 以下关于QOS 的设计方法正确的是（）

A、A. 在规划QOS 时，可以不考虑VOIP 业务，因为它占用的带宽资源少  B、B. QOS 功能可以实现对流量的限速  C、C. 交换机的QOS 采用硬件队列实现  D、D. QOS 仅在接入层部署  

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第3题
[多选题] Which two Cisco AutoQoS configuration statements are true？ （）

A、the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfaces  B、CEF must be enabled before configuring the auto discovery qos command  C、the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data traffic  D、the auto qos trust command relies on NBAR to provide VoIP classification  E、the auto qos voip command configures the voip classification on routers and switches  

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第4题
[多选题] Which two statements about the QoS policy generation phase of the Cisco SDM QoS wizard are true？ （）

A、 The SDM QoS wizard will create two real-time traffic classes to handle VoIP and voice signaling packets.  B、 The SDM QoS wizard will create three real-time traffic classes to handle VoIP， voice signaling， and video packets.  C、 The SDM QoS wizard will create four real-time traffic classes to handle VoIP， voice signaling， video， and video streaming packets.  D、 The SDM QoS wizard will create two business-critical traffic classes to handle transactional and network management packets.  E、 The SDM QoS wizard will create three business-critical traffic classes to handle transactional， network management， and routing packets.  F、 The SDM QoS wizard will create four business-critical traffic classes to handle transactional， network management， routing， and best-effort packets.  

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第5题
[多选题] Which two statements about the QoS policy generation phase of the Cisco SDM QoS wizard are true？（）

A、the SDM QoS wizard will create two real-time traffic classes to handle VoIP， voice signaling， and video packets  B、the SDM QoS wizard will create three real-time traffic classes to handle VoIP， voice signaling， video， and video packets  C、the SDM QoS wizard will create four real-time traffic classes to handle VoIP， voice signaling， video， and video streaming packets  D、the SDM QoS wizard will create two business-critical traffic classes to handle transactional and  network management packets  E、the SDM QoS wizard will create three business-critical traffic classes to handle transactional， network management， and routing packets  F、the SDM QoS wizard will create four business-critical traffic classes to handle transactional， network management， routing， and best-effort packets  

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第6题
[] A branch router is configured with an egress QoS policy that was designed for a total number of 10 concurrent VOIP Calls. Due to Expansion， 15 VOIP Calls are now running over the link， but after the 14th call was established， all calls were affected and the voice quality was dramatically degraded. Assuming that there is enough bandwidth on the link for all of this traffic， which part of the QOS configuration should be updated due to the new traffic profile？（）

A、A.Increase the shaping rate for the priority queue.  B、B.Remove the policer applied on the priority queue.  C、C.Remove the shaper applied on the preiority queue.  D、D.Increase the policing rate for the priority queue.  

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第7题
[多选题] Which three QoS mechanisms can be configured to improve VoIP quality on a converged  network？（）

A、The use of a queuing method that will give VoIP traffic strict priority over other traffic    B、The use of RTP header compression for the VoIP traffic.  C、The proper classification and marking of the traffic as close to the source as possible  D、The use of 802.1QinQ trunking for VoIP traffic  E、The use of WRED for the VoIP traffic  

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第8题
[单选题] An expanding company is deploying leased lines between its main site and two remote sites. The bandwidth of the leased lines is 128kb/s each，terminated on different serial interfaces on the main router. These links are used for combined VOIP and data traffic. The network administrator has implemented a VOIP solution to reduce costs，and has therefore reserved sufficient bandwidth in a low latency queue on each interface for the VOIP traffic. Users now complain about bad voice quality although no drops are obse

A、mark VOIP traffic with IP precedence 6 and configure only ’fair-queue’ on the links  B、configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cycles  C、enable class-based traffic shaping on the VoIP traffic class  D、enable Layer 2 fragmentation and interleaving on the links  E、enable Frame Relay on the links and send voice and data on different Frame Relay PVCs  

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第9题
[多选题] Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）

A、The use of a queuing method that will give VoIP traffic strict priority over other traffic  B、The use of RTP header compression for the VoIP traffic  C、The proper classification and marking of the traffic as close to the source as possible  D、The use of 802.1QinQ trunking for VoIP traffic  E、The use of WRED  

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