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
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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
最新試題
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？（）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
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 ？ （）
Refer to the exhibit. Switch 15 is configured as the root switch for VLAN 10 but not for VLAN 20. If the STP configuration is correct， what will be true about Switch 15？（）
What is the configured priority value of the Vlan105’s group on DS2 ？（）
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. All network links are FastEthernet. Although there is complete connectivity throughout the network， Front Line users have been complaining that they experience slower network performance when accessing the server farm than the Reception office experiences. Based on the exhibit， which two statements are true？（）
Refer to the exhibit. What does the command channel-group 1 mode desirable do？ （）
Refer to the exhibit. What command was issued on the Layer 3 switch Sw1 between Exhibit #1 and Exhibit #2？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）