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【单选题】

If voice and data traffic will be sent and received via a WAN links， what must be configured to provide a certain amount of dedicated bandwidth and to prioritize the voice traffic over other types of network traffic？（）

A、IPSec VPN

B、QoS mechanism

C、Firewall

D、NAT

E、EIGRP routing protocol

F、Static routing

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更多“If voice and data traffic will be sent and received via a WAN links， what must be configured to provide a certain amount of dedicated bandwidth and to prioritize the voice traffic over other types of network traffic？（）”相关的问题
第1题
[多选题] Which two statements correctly identify factors to consider when Configuring WAN QoS？（）

A、Voice Traffic uses Assured Forwarding  B、Voice Signaling traffic uses Assured Forwarding  C、Voice Signaling traffic uses priority queuing  D、Voice Traffic uses priority queuing  E、Voice signaling traffic should use priority queuing with Assured Forwarding  

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第2题
[多选题] Voice quality is bad due to high delay and jitter on a link. Which two actions will improve the quality  of voice calls？（）

A、Increase the queue size of the voice class.  B、Guarantee bandwidth during congestion to the voice class with a bandwidth command.  C、Increase the tx-ring of the egress interface.  D、Implement LLQ for the voice class.  E、Decrease the rx-ring of the egress interface.  F、Decrease the queue size of the voice class.  

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第3题
[单选题] What is the typical marked DSCP value for a voice media packet in Voice over IP technology？（）

A、AF41  B、AF31  C、AF21  D、BE  E、EF  

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第4题
[单选题] Cisco Unified Communications 500 Series for Small Business， a critical part of the Cisco SmartBusiness Communications System， is a unified communications solution for small businesses that provides voice， data， voicemail. For which technology the Cisco UC520 provides integrated WLAN connectivity to mobile clients？（）

A、 voice only  B、 data only  C、 data and voice  D、 None of above  

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第5题
[单选题] Choose the false statement concerning the use of CiscoWorks Internetwork Performance Monitor (IPM) in a Teleworker deployment.（）

A、IPM should not be run on a production network.   B、IPM helps verify if a Service Provider is meeting the Service Level Agreement.   C、IPM contains a database that can store data on latency, jitter, and drops of voice packets over a period of weeks or months.   D、The QoS service policy should contain an allocation of sufficient bandwidth in the priority queue (LLQ) for both the SAA probe simulating a voice call and the voice call. If not, voice quality will suffer.  

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第6题
[单选题] What protocol does an IP phone use to learn the voice VLAN ID it should use for voice traffic？（）

A、VTP  B、802.1 q  C、CDP  D、Skinny Station Protocol  

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第7题
[单选题] Due to limitations affecting voice quality, which of the broadband speeds shown is preferred in order to achieve highest voice quality on a converged data and voice teleworker connection?（）

A、DSL with 128k uplink /128k downlink  B、cable with 256k uplink /256k downlink  C、DSL with 128k uplink /768k downlink  D、cable with 256k uplink /1.4M downlink  

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第8题
[单选题] When QoS levels in the Cisco Wireless Control System （WCS） are entered， which profile names are used to identify the access categories？（）

A、 platinum， gold， silver， and bronze  B、 voice， gold， silver， and bronze  C、 low delay， network critical， business， best effort  D、 voice， video， background gold， background silver， and best effort  E、 voice， video， best effort， and background  F、 voice， video， best effort， background， and scavenger  

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第9题
[单选题] Refer to the exhibit. A router has a 256 kbps Frame Relay circuit connected to interface serial 0/0. As a large FTP packet is being placed into the hardware transmit queue of interface serial 0/0， a voice packet is placed into the priority queue of that interface. How， and in what order， wi the packets be transmitted？（）

A、the voice packet will be transmitted first， followed by the FTP packet in its entirety  B、the voice packet will be transmitted first， followed by the fragmented FTP packet  C、the FTP packet will be fragmented and the voice packet will be interleaved  D、the FTP packet will be transmitted first in its entirety， follow by the voice packet  

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