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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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更多 “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 trafficB、The use of RTP header compression for the VoIP trafficC、The proper classification and marking of the traffic as close to the source as possibleD、The use of 802.1QinQ trunking for VoIP trafficE、The use of WRED” 相关考题
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Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises ease network management and decreases(66)by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(67)tremendous amounts of money in long distance phone bills, provided that solution delivers POTS-like voice(68)over the Internet.VOIP gateways are designed to convert voice from the(69)domain to the circuit switched domain. VOIP solutions use a digital signal processor(DSP)to process the voice data, preparing the voice sample for transmission by compressing voice and removing jitter. The VOIP equipment must comply with the(70)H.323 standard defined by the International Telecommunication Union, or ITU.A．timeB．cashC．costsD．space
考题
Which of the following are examples of traffic that can be created as part of an IP Service －Level Agreement operation?()
A. ICMP EchoB. VoIP (RTP)C. IPXD. SNMP
考题
Users at the Charleville Company began experiencing high network delays when Internet connectivity was enabled for all users. After investigating the traffic flow, you determine that peerto-peer traffic from a music download site is consuming a large amount of bandwidth. Which QoS mechanism can you implement to improve the network response time?（）A. Use CBWFQ to queue the peer-to-peer traffic into the default traffic class.B. Use class-based WRED to randomly drop the peer-to-peer traffic during network congestions.C. Use class-based policing to limit the peer-to-peer traffic rate.D. Use class-based shaping to delay any excessive peer-to-peer traffic. Answer: C
考题
Which two QoS statements are true about the use of the SDM QoS wizard？（）A、Business-critical traffic includes VoIP and voice signaling packets.B、SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces and IPsec tunnels.C、SDM can provide QoS for real-time traffic and business-critical traffic.D、SDM creates a custom-queuing （CQ） or a priority-queuing （PQ） policy.E、SDM creates a low latency queuing （LLQ） service policy with its associated classes.F、When allocating bandwidth， values can be entered in either bandwidth percentage or kilobytes per second （kBps）.
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You are the network administrator of an enterprise with a main site and multiple remote sites. Your networkcarries both VOIP and data traffic. You agree with your service provider to classify VOIP and data trafficaccording to the different service RFCs. How can your data and VOIP traffic be marked？（）A、data marked with DSCP AF21，VOIP marked with DSCP EFB、data marked with DSCP AF51，VOIP marked with DSCP EFC、data marked with the DE-bit. VOIP marked with the CLP-bitD、data marked with DSCP EF，VOIP marked with DSCP AF31E、data marked with IP precedence 5，VOIP marked with DSCP EF
考题
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 possibleD、The use of 802.1QinQ trunking for VoIP trafficE、The use of WRED for the VoIP traffic
考题
What gateway port type can analog phones be connected to for use on a VoIP network？（）A、FXSB、FSOC、EMD、auxiliary portE、802.3af ethernetports
考题
Which of the following are examples of traffic that can be created as part of an IP Service -Level Agreement operation?（）A、ICMP EchoB、VoIP (RTP)C、IPXD、SNMP
考题
What are two ways to minimize the delay of VoIP packets that are traversing a network？（）A、Use WFQ， CBWFO， and LLO to prioritize delay-sensitive packetsB、Use WFO， CBWFO， and LLO to compress the payload.C、Give TCP packets priority over UDP packets.D、Use control plane policing for cRTP queuing.E、Use stacker and predictor to compress the payload.
考题
To have the best possible voice quality and to utilize effectively the available bandwidth， which queuing and compression mechanisms need to be used？（）A、class-based weighted fair queuing （CBWFQ）B、low latency queuing （LLQ）C、priority queuing （PQ） or custom queuing （CQ）D、Real-Time Transport Protocol （RTP） header compressionE、TCP header compressionF、UDP header compression
考题
Which of these tools should you use to compress VoIP packets on a low-speed Frame Replay circuit?（）A、Cisco Proprietary payload compressionB、Predictor payload compressionC、RTP header compressionD、TCP header compression
考题
You are the network administrator of an enterprise with a main site and multiple remote sites. Your network carries both VOIP and data traffic. You agree with your service provider to classify VOIP and data traffic according to the different service RFCs. How can your data and VOIP traffic be marked？（）A、data marked with DSCP AF21，VOIP marked with DSCP EFB、data marked with DSCP AF51，VOIP marked with DSCP EFC、data marked with the DE-bit，VOIP marked with the CLP-bitD、data marked with DSCP EF，VOIP marked with DSCP AF31E、data marked with IP precedence 5 VOIP marked with DSCP EF
考题
Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）A、 CAC is used to allocate enough bandwidth for the number of calls that are allowed on the VoIP network.B、 CAC is used to protect the quality of the voice calls by preventing call establishment if enough resources are not available on the network.C、 CAC provides queuing mechanisms for voice calls if the packets exceed the configured or budgeted rate.D、 In a VoIP network the CAC can be replaced with the LLQ QoS mechanism if it has been properly implemented.
考题
You add the following commands into a routed topology： router eigrp 1 variance 3 traffic-share min across-interfaces. Users now complain about voice quality in your VoIP system. What should be done？ （）A、 Add the command： router eigrp 1 traffic-share voice interface fast 0/0B、 Reconfigure EIGRP to recognize voice packetsC、 Remove the variance from the configurationD、 Reconfigure the VoIP system to use RTP sequence number headersE、 Use an H '323 gatekeeper for your VoIP system to negotiate an H'245 uneven packet bufferF、 Reconfigure EIGRP to version 2
考题
Which Modular QoS CLI （MQC） based output queuing method is designed to support multiple trafficclasses including VoIP traffic， mission-critical traffic， interactive traffic， and default class traffic？（）A、CBWFQB、CB-WREDC、LLQD、Custom QueueingE、WRR Queueing
考题
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， allcalls 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、Increase the shaping rate for the priority queue.B、Remove the policer applied on the priority queue.C、Remove the shaper applied on the priority queue.D、Increase the policing rate for the priority queue.
考题
Which two statements correctly identify factors to consider when Configuring WAN QoS？（）A、Voice Traffic uses Assured ForwardingB、Voice Signaling traffic uses Assured ForwardingC、Voice Signaling traffic uses priority queuingD、Voice Traffic uses priority queuingE、Voice signaling traffic should use priority queuing with Assured Forwarding
考题
What are two ways to minimize the delay of VoIP packets that are traversing a network？ （）A、 Use WFQ， CBWFQ， and LLQ to prioritize delay-sensitive packets.B、 Use WFQ， CBWFQ， and LLQ to compress the payload.C、 Give TCP packets priority over UDP packets.D、 Use control plane policing for cRTP queuing.E、 Use stacker and predictor to compress the payload.
考题
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、Increase the shaping rate for the priority queue.B、Remove the policer applied on the priority queue.C、Remove the shaper applied on the preiority queue.D、Increase the policing rate for the priority queue.
考题
Which two QoS statements are true about the use of the SDMQoS wizard？（）A、business-critical traffic includes VoIP and voice signaling packetsB、SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces andIPsec tunnelsC、SDM can provide QoS for real-time traffic and business-critical trafficD、SDM creates a custom-queuing （CQ） or a priority-queuing （PQ） policyE、SDM creates a low latency queuing （LLQ） service policy with its associated classesF、when allocating bandwidth， values can be entered in either bandwidth percentage or kilobytes per second （kBps）
考题
多选题To have the best possible voice quality and to utilize effectively the available bandwidth， which queuing and compression mechanisms need to be used？（）Aclass-based weighted fair queuing （CBWFQ）Blow latency queuing （LLQ）Cpriority queuing （PQ） or custom queuing （CQ）DReal-Time Transport Protocol （RTP） header compressionETCP header compressionFUDP header compression
考题
多选题Which QoS mechanisms can you use on a converged network to improve VoIP quality？（）AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP trafficCThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED
考题
多选题Which two QoS statements are true about the use of the SDM QoS wizard？ （）ABusiness-critical traffic includes VoIP and voice signaling packets.BSDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces and IPsec tunnels.CSDM can provide QoS for real-time traffic and business-critical traffic.DSDM creates a custom-queuing （CQ） or a priority-queuing （PQ） policy.ESDM creates a low latency queuing （LLQ） service policy with its associated classes.FWhen allocating bandwidth， values can be entered in either bandwidth percentage or kilobytes per second （kBps）.
考题
单选题Which Modular QoS CLI （MQC） based output queuing method is designed to support multiple trafficclasses including VoIP traffic， mission-critical traffic， interactive traffic， and default class traffic？（）A
CBWFQB
CB-WREDC
LLQD
Custom QueueingE
WRR Queueing
考题
单选题Which of these tools should you use to compress VoIP packets on a low-speed Frame Replay circuit?（）A
Cisco Proprietary payload compressionB
Predictor payload compressionC
RTP header compressionD
TCP header compression
考题
多选题Which three QoS mechanisms can be configured to improve VoIP quality on a converged network？（）AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP traffic.CThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED for the VoIP traffic
考题
多选题Which two statements correctly identify factors to consider when Configuring WAN QoS？（）AVoice Traffic uses Assured ForwardingBVoice Signaling traffic uses Assured ForwardingCVoice Signaling traffic uses priority queuingDVoice Traffic uses priority queuingEVoice signaling traffic should use priority queuing with Assured Forwarding
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