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多选题
When should traffic shaping be implemented on Frame Relay PVCs？（）
A
When you want to drop excess traffic above the CIR
B
When there is a speed mismatch between the central site and the remote site
C
When using Frame Relay SVCs
D
When over-subscribing the central site link
E
When LLQ is implemented on the Frame Relay PVC
F
When Multilink PPP LFI is implemented on the Frame Relay PVC
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更多 “多选题When should traffic shaping be implemented on Frame Relay PVCs？（）AWhen you want to drop excess traffic above the CIRBWhen there is a speed mismatch between the central site and the remote siteCWhen using Frame Relay SVCsDWhen over-subscribing the central site linkEWhen LLQ is implemented on the Frame Relay PVCFWhen Multilink PPP LFI is implemented on the Frame Relay PVC” 相关考题
考题
You are troubleshooting a frame relay connection and wish to view the LMI traffic stats. Which command should you issue?()
A. Show interface lmiB. Show frame-relay lmiC. Show interface frame-relayD. Debug frame-relay interface.
考题
A new frame－relay network is being implemented and inverse ARP does not appear to be operating correctly. Which alternative command can be used to provide connectivity?()
A. frame-relay arpB. frame-relay mapC. frame-relay interface-dlciD. frame-relay lmi-typeE. frame-relay pvc
考题
To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?()
A. prioritizationB. classificationC. fragmentationD. traffic shaping
考题
When troubleshooting a Frame Relay connection, what is the first step when performing a loopback test?()
A.Set the encapsulation of the interface to HDLCB.Place the CSU/DSU in local-loop modeC.Enable local-loop mode on the DCE Frame Relay routerD.Verify that the encapsulation is set to Frame Relay
考题
Which two of these are differences between traffic policing and traffic shaping？（）A、with traffic shaping，a router stores excess traffic in packet buffers until bandwidth is available againB、with policing you can tune the buffer usage for traffic exceeding the specified CIRC、with shaping you can tune the buffer usage for traffic exceeding the specified CIRD、shaping should only be applied for ingress traffic，policing only for egressE、policing uses a token bucket algorithm，shaping uses an SPD algorithm
考题
Which two statements are correct about configuring AutoQoS on a Cisco router？ （）A、 AutoOoS can be implemented on only one side of a link.B、The interface does not have to have an IP address associated with it.C、The AutoOoS feature cannot be configured on a Frame Relay DLCI if a map class is attached to the DLCI.D、In a Frame Relay network， AutoOoS cannot be configured if a DLCI is already assigned to the Frame Relay subinterface
考题
When should traffic shaping be implemented on Frame Relay PVCs？（）A、When you want to drop excess traffic above the CIRB、When there is a speed mismatch between the central site and the remote siteC、When using Frame Relay SVCsD、When over-subscribing the central site linkE、When LLQ is implemented on the Frame Relay PVCF、When Multilink PPP LFI is implemented on the Frame Relay PVC
考题
Which two statements are true about traffic shaping and traffic policing？（）A、both traffic shaping and traffic policing cause retransmissions of connection-oriented protocols such as TCPB、both traffic shaping and traffic policing support the marking and re-marking of trafficC、the effects of traffic shaping and traffic policing when configured on a router are applied to outgoing trafficD、traffic shaping queues excess traffic whereas traffic policing discards excess trafficE、traffic shaping allows the traffic to exceed the bit rate whereas traffic policing prevents the traffic from exceeding the bit rate
考题
Which statement about Frame Relay is not true？（）A、Static mapping is used when the remote router does not support Inverse ARP.B、Frame Relay Inverse ARP requires LMI capability to construct an address to the DLCI mapping tableon the router.C、Frame Relay Inverse ARP is disabled by default in Cisco IOS Software for all protocols that areenabled on the physical interface.D、Inverse ARP does not work when LMI is disabled.E、Frame Relay provides forward and backward congestion notification messages
考题
A new frame-relay network is being implemented and inverse ARP does not appear to be operating correctly. Which alternative command can be used to provide connectivity?（）A、frame-relay arpB、frame-relay mapC、frame-relay interface-dlciD、frame-relay lmi-typeE、frame-relay pvc
考题
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?（）A、after broken links are re-establishedB、in an improperly implemented redundant topologyC、when upper-layer protocols require high reliabilityD、during high traffic periodsE、when a dual ring topology is in use
考题
What does FRTP stand for？（）A、Frame Relay Top PseudowireB、Frame Relay Traffic PseudowireC、Frame Relay Traffic ProtocolD、Frame Relay Traffic Policing
考题
When troubleshooting a Frame Relay connection, what is the first step when performing a loopback test?（）A、Set the encapsulation of the interface to HDLCB、Place the CSU/DSU in local-loop modeC、Enable local-loop mode on the DCE Frame Relay routerD、Verify that the encapsulation is set to Frame Relay
考题
To ensure voice packets are kept within the Committed Information Rate （CIR） of a Frame Relaylink， what should be used in the CPE？（）A、 prioritizationB、 classificationC、 fragmentationD、 traffic shaping
考题
To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?（）A、prioritizationB、classificationC、fragmentationD、traffic shaping
考题
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 observed in the low latency queue.What action will likely fix this problem？（）A、mark VOIP traffic with IP precedence 6 and configure only ’fair-queue’ on the linksB、configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cyclesC、enable class-based traffic shaping on the VoIP traffic classD、enable Layer 2 fragmentation and interleaving on the linksE、enable Frame Relay on the links and send voice and data on different Frame Relay PVCs
考题
Which Cisco IOS traffic-shaping mechanism statement is true？ （）A、class-based policing is configured using the Modular QoS command-line （MQC）B、only the Frame Relay traffic-shaping （FRTS） mechanism can interact with a Frame Relay network， adapting to indications of Layer2 congestion in the WAN linksC、Distributed Traffic Shaping （DTS） is configured with the police command under the policy map configurationD、both Frame Relay traffic shaping （FRTS） and virtual IP （VIP）-based Distributed Traffic Shaping （DTS） have the ability to mark traffic
考题
In which three network technologies is traffic shaping used to prevent and manage congestion？ （）A、Asynchronous Transfer Mode （ATM）B、data-link switching （DLSw）C、Route Processor Redundancy （RPR）D、Frame Relay （FR）E、Metro EthernetF、Multiprotocol Label Switching （MPLS）
考题
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switchedLAN？（）A、after broken links are re-establishedB、in an improperly implemented redundant topologyC、when upper-layer protocols require high reliabilityD、during high traffic periodsE、when a dual ring topology is in use
考题
单选题What occurs on a Frame Relay network when the CIR is exceeded?（）A
All TCP traffic is marked discard eligibleB
All UDP traffic is marked discard eligible and a BECN is sentC
All TCP traffic is marked discard eligible and a BECN is sentD
All traffic exceeding the CIR is marked discard eligible
考题
单选题To ensure voice packets are kept within the Committed Information Rate （CIR） of a Frame Relaylink， what should be used in the CPE？（）A
prioritizationB
classificationC
fragmentationD
traffic shaping
考题
多选题Which two of these are differences between traffic policing and traffic shaping？（）Awith traffic shaping，a router stores excess traffic in packet buffers until bandwidth is available againBwith policing you can tune the buffer usage for traffic exceeding the specified CIRCwith shaping you can tune the buffer usage for traffic exceeding the specified CIRDshaping should only be applied for ingress traffic，policing only for egressEpolicing uses a token bucket algorithm，shaping uses an SPD algorithm
考题
单选题What occurs on a Frame Relay network when the CIR is exceeded?（）A
All TCP traffic is marked discard eligible.B
All UDP traffic is marked discard eligible and a BECN is sent.C
All TCP traffic is marked discard eligible and a BECN is sent.D
All traffic exceeding the CIR is marked discard eligible.
考题
多选题Which two statements are correct about configuring AutoQoS on a Cisco router？ （）AAutoOoS can be implemented on only one side of a link.BThe interface does not have to have an IP address associated with it.CThe AutoOoS feature cannot be configured on a Frame Relay DLCI if a map class is attached to the DLCI.DIn a Frame Relay network， AutoOoS cannot be configured if a DLCI is already assigned to the Frame Relay subinterface
考题
单选题You are troubleshooting a frame relay connection and wish to view the LMI traffic stats. Which command should you issue?（）A
Show interface lmiB
Show frame-relay lmiC
Show interface frame-relayD
Debug frame-relay interface.
考题
多选题Which two statements are true about traffic shaping and traffic policing？（）Aboth traffic shaping and traffic policing cause retransmissions of connection-oriented protocols such as TCPBboth traffic shaping and traffic policing support the marking and re-marking of trafficCthe effects of traffic shaping and traffic policing when configured on a router are applied to outgoing trafficDtraffic shaping queues excess traffic whereas traffic policing discards excess trafficEtraffic shaping allows the traffic to exceed the bit rate whereas traffic policing prevents the traffic from exceeding the bit rate
考题
单选题To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?（）A
prioritizationB
classificationC
fragmentationD
traffic shaping
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