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.
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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.
最新試題
Which three statements about STP timers are true？（）
Examine the diagram. A network administrator has recently installed the above switched network using 3550s and would like to control the selection of the root bridge.Which switch should theadministrator configure as the root bridge and which configuration command must theadministrator enter to accomplish this？（）
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）
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？ （）
Refer to the exhibit. What command was issued on the Layer 3 switch Sw1 between Exhibit #1 and Exhibit #2？（）
Refer to the exhibit. Based on the output of the show spanning-tree command， which statement is true？ （）
Which three statements are true of the Link Aggregation Control Protocol （LACP）？（）
Which two statements about the various implementations of STP are true？（）
What two things will occur when an edge port receives a BPDU？（）
Which two statements are true when the extended system ID feature is enabled？ （）