Interface congestion is causing drops in voice packets and TCP packets. The drops result in jerky speech quality and slower FTP traffic flows. Which two technologies would proactively address the TCP transfer rate and the voice problems？（）A、CBWFQB、LLQC、traffic shapingD、WRED
Interface congestion is causing drops in voice packets and TCP packets. The drops result in jerky speech quality and slower FTP traffic flows. Which two technologies would proactively address the TCP transfer rate and the voice problems？（）
- A、CBWFQ
- B、LLQ
- C、traffic shaping
- D、WRED
相关考题：
You are experiencing contention in the queue on an egress interface of the router. Which policy action should be used for congestion control?() A.markB.colorC.filterD.discard
The policy action of color is used for congestion control under which circumstance?() A.congestion in an upstream routerB.congestion in a downstream routerC.contention for queue space on an egress interfaceD.contention for queue space on an ingress interface
What are two considerations to using IP Multicast delivery? () A. no congestion avoidanceB. not for bandwidth intensive applicationsC. no guaranteed delivery mechanismD. source sends multiple data streams out each interface
Which command shows if an access list is assigned to an interface?() A. show ip interface [interface] access-listsB. show ip access-lists interface [interface]C. show ip interface [interface]D. show ip access-lists [interface]
Whichcommandshowsif an accesslistisassignedtoaninterface?() A.show ip interface [interface] access-listsB.show ip access-lists interface [interface]C.show ip interface [interface]D.show ip access-lists [interface]
Which two statements are true about bandwidth guarantee？（）A、When congestion is present，the priority command doesn’t allow exceeding the allocated rateB、When congestion isn’t present，the priority command doesn’t allow exceeding the allocated rateC、When congestion is present，the priority command allows exceeding the allocated rateD、When congestion isn’t present，the priority command allows exceeding the allocated rate
What are two considerations to using IP Multicast delivery? （）A、no congestion avoidanceB、not for bandwidth intensive applicationsC、no guaranteed delivery mechanismD、source sends multiple data streams out each interface
Select the three valid LMI extension.（）A、MulticastingB、Global addressingC、Forward-explicit congestion notification （FECN）D、Virtual circuit status messages.E、Backward-explicit congestion notification （BECN）
What are three benefits of class of service?（）A、It can make a slow network faster.B、It can prioritize latency-sensitive traffic.C、It can eliminate congestion.D、It can control congestion.E、It can allocate bandwidth for different classes of traffic.
Which command allows you to view interface usage details in real-time?（）A、user@host debug interface interface-nameB、user@host monitor usage interface-nameC、user@host monitor interface interface-nameD、user@host traceoptions interface interface-name
For Ethernet-to-Ethernet routers, such as the Cisco 831 behind a cable modem or DSL bridge, a traffic shaper is configured. This is required since the output 10-Mbps interface will not be congested. Which two statements are true?（）A、The parent policy-map shapes and the child policy-map queues.B、The mean-rate and burst-size must always be the same value.C、This will not work without a Dialer interface configured.D、The shaper provides congestion feedback.
Which command shows if an access list is assigned to an interface?（）A、show ip interface [interface] access-listsB、show ip access-lists interface [interface]C、show ip interface [interface]D、show ip access-lists [interface]
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.
The policy action of color is used for congestion control under which circumstance?（）A、congestion in an upstream routerB、congestion in a downstream routerC、contention for queue space on an egress interfaceD、contention for queue space on an ingress interface
单选题Which command allows you to decode packets in JUNOS?（）Adebug packet interface-nameBshow interface extensiveCtraceoptions interface-nameDmonitor traffic interface interface-name
多选题For Ethernet-to-Ethernet routers, such as the Cisco 831 behind a cable modem or DSL bridge, a traffic shaper is configured. This is required since the output 10-Mbps interface will not be congested. Which two statements are true?（）AThe parent policy-map shapes and the child policy-map queues.BThe mean-rate and burst-size must always be the same value.CThis will not work without a Dialer interface configured.DThe shaper provides congestion feedback.
单选题You are experiencing contention in the queue on an egress interface of the router. Which policy action should be used for congestion control?（）AmarkBcolorCfilterDdiscard
单选题Which command allows you to view interface usage details in real-time?（）Auser@host debug interface interface-nameBuser@host monitor usage interface-nameCuser@host monitor interface interface-nameDuser@host traceoptions interface interface-name
多选题Select the three valid LMI extension.（）AMulticastingBGlobal addressingCForward-explicit congestion notification （FECN）DVirtual circuit status messages.EBackward-explicit congestion notification （BECN）
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？（）AIncrease the queue size of the voice class.BGuarantee bandwidth during congestion to the voice class with a bandwidth command.CIncrease the tx-ring of the egress interface.DImplement LLQ for the voice class.EDecrease the rx-ring of the egress interface.FDecrease the queue size of the voice class.
单选题The policy action of color is used for congestion control under which circumstance?（）Acongestion in an upstream routerBcongestion in a downstream routerCcontention for queue space on an egress interfaceDcontention for queue space on an ingress interface
单选题Which statement about Frame Relay is not true？（）AStatic mapping is used when the remote router does not support Inverse ARP.BFrame Relay Inverse ARP requires LMI capability to construct an address to the DLCI mapping tableon the router.CFrame Relay Inverse ARP is disabled by default in Cisco IOS Software for all protocols that areenabled on the physical interface.DInverse ARP does not work when LMI is disabled.EFrame Relay provides forward and backward congestion notification messages
多选题What are three problems with the tail drop mechanism of managing interface congestion？（）AQueuing introduces equal delays for packets of the same flow， resulting in jitter.BWhen congestion occurs， dropping affects most of the TCP sessions， which simultaneously back off and then restart again.CAll buffers can temporarily be seized by aggressive flows， and normal TCP flows experience buffer starvation.DThere is no differentiated drop mechanism. Higher priority traffic is dropped in the same way as best-effort traffic.EIn TCP starvation， traffic exceeds the queue limit because of the bursty nature of packet networks. A router cannot handle multiple concurrent TCP sessions.FGlobal synchronization occurs because multiple TCP hosts reduce their transmission rates at random intervals in response to packet dropping
多选题What are two considerations to using IP Multicast delivery？ （）Ano congestion avoidanceBnot for bandwidth intensive applicationsCno guaranteed delivery mechanismDsource sends multiple data streams out each interface