The Cisco AutoQoS feature is being used throughout the Company VOIP network.
Which three statements about this feature are true？（）
A.The "mls qos" global configuration command must be entered before configuring AutoQoS.
B.CEF must be enabled.
C.The "no auto qos voip" command is used to disable Cisco AutoQos and revoke all configurations generated by Cisco AutoQos.
D.CDP must be enabled.
E.SNMP must be enabled.
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Refer to the exhibit.
What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone？（）
A.Effectively the trust boundary has been moved to the IP phone.
B.RTP will be used to negotiate aCoS value based upon bandwidth utilization on the link.
C.The switch is rewriting packets it receives from the IP phone and determining theCoS value.
D.The switch will no longer tag incoming voice packets and will trust the distribution layer switch to set theCoS.
E.The host is now establishing theCoS value and has effectively become the trust boundary.
Refer to the exhibit.
Which switch interface configuration command would automatically configure quality of service （QoS） for voice over IP （VoIP） within a QoS domain？ （）
A.switchport priority extend trust
B.mls qos trust
C.switchport priority extend cos 7
D.auto qos voip cisco-phone
Refer to the exhibit. A trunk link is connected between switch A_SW and switch D_SW. Based on the configuration shown in the exhibit，
how would the traffic coming from the switch A_SW be managed？（）
A.The trunk port Fa0/1 on switch A_SW will trust allCoS values on the frames coming from the IP phone.
B.The trunk port Fa0/1 on switch A_SW will trust allCoS values on the frames received on the IP phone.
C.The trunk port Fa0/1 on switch D_SW will trust allCoS values on the frames coming from port Fa0/1 on A_SW.
D.The trunk port Fa0/1 on switch D_SW will trust allCoS values on the frames received on the A_SW switch port Fa0/4.
E.The trunk port Fa0/1 on switch D_SW will trust allCoS values on the frames received on the IP phone port.
The Company network is displayed in the following topology exhibit：
Workstation 1 traffic is set for cos 5 and the switch CompanyA sends workstation 1 traffic to the switch CompanyB. However， not all of the traffic from Switch CompanyA is from workstation 1. Switch CompanyA configurations Switch CompanyB Configuration：
mlsqos mls qos
interfacefa0/1 interface fa0/1
switchportmode trunk switchport trunk mode
switchporttrunk encapsulation dot 1q switchport trunk encapsulation dot 1q
switchporttrunk native vlan 1 switchport trunk native vlan 1
Frames from Workstation 1 are given the rightful priority through Switch CompanyA， but Switch CompanyB doesn’t reciprocate， and treats Workstation 1 frames as if they have no precedence. Which of the following actions will prioritize traffic from Workstation 1？（）
A. Configure qos all command under Switch CompanyB fa0/1 interface.
B. Configure mls qos trust cos command under Switch CompanyB fa0/1 interface.
C. Configure mls qos trust cos 5 command under Switch CompanyB fa0/1 interface.
D. Configure qos cos 5 command under Switch CompanyB fa0/1 interface.
E. Configure mls qos trust cos command under Switch CompanyA fa0/1 interface.
F. Configure qos cos 5 command under Switch CompanyA fa0/1 interface.
VOIP is being implemented in the Company network and you need to assess the need for QoS.
Which of the following network problems would indicate a need to implement QoS features？（）
A.Mis-routed packets
B.Excess jitter
C.Delay of critical traffic
D.Packet loss due to congestion
E.Data link layer broadcast storms
F.FTP connections unsuccessful
VOIP is being implemented on the Company network. In a properly designed network，
what is the maximum amount of time a voice package should spend crossing a network？ （）
A.90 milliseconds
B.120 milliseconds
C.150 milliseconds
D.240 milliseconds
Jitter is causing problems with the VOIP application in the Company network.
What causes network jitter？（）
A.Variable queue delays
B.Packet drops
C.Transmitting too many small packets
D.Compression
Refer to the exhibit. A trunk link is connected between switch A_SW and switch D_SW. Based on the configuration shown in the exhibit，
how would the traffic coming from the switch A_SW be managed？ （）
A.The trunk port Fa0/1 on switch A_SW will trust allCoS values on the frames coming from the IP phone.
B.The trunk port Fa0/1 on switch A_SW will trust allCoS values on the frames received on the IP phone.
C.The trunk port Fa0/1 on switch D_SW will trust allCoS values on the frames coming from port Fa0/1 on A_SW.
D.The trunk port Fa0/1 on switch D_SW will trust allCoS values on the frames received on the A_SW switch port Fa0/4.
E.The trunk port Fa0/1 on switch D_SW will trust allCoS values on the frames received on the IP phone port.
Refer to the exhibit.
Which statement is true when voice traffic is forwarded on the same VLAN used by the data traffic？ （）
A.The voice traffic cannot be forwarded to the distribution layer.
B.The voice traffic cannot use 802.1p priority tagging.
C.Port security cannot be enabled on the switch that is attached to the IP phone.
D.Quality of service cannot be applied for the voice traffic.
Refer to the exhibit.
Why does the trust state of interface FastEthernet 0/3 show "not trusted"？ （）
A.DSCP map needs to be configured for VOIP.
B.ToS has not been configured.
C.ToS has been misconfigured.
D.The command mls qos needs to be turned on in global configuration mode.
E.There is not a Cisco Phone attached to the interface.
最新試題
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
Refer to the exhibit. On the basis of the output of the show spanning-tree inconsistentports command， which statement about interfaces FastEthernet 0/1 and FastEthernet 0/2 is true？（）
If G1/0/1 on DS1 is shutdown， what will be the current priority value of the Vlan105’s group on DS1 ？（）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
What must be the same to make multiple switches part of the same Multiple Spanning Tree （MST）？（）
Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statements about the STP process for VLAN 200 are true？ （）
During routine maintenance， it became necessary to shutdown G1/0/1 on DS1 and DS2. All other interface were up. During this time， DS1 became the active device for Vlan104’s HSRP group. As related to Vlan104’s HSRP group. What can be done to make the group function properly ？ （）
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result？（）
DS2 has not become the active device for Vlan103’s HSRP group even though all interfaces are active. As related to Vlan103’s HSRP group. What can be done to make the group function properly ？ （）
Which two statements are true when the extended system ID feature is enabled？ （）