單項(xiàng)選擇題

You are the network administrator of an enterprise with a main site and multiple remote sites. Your network carries both VOIP and data traffic. You agree with your service provider to classify VOIP and data traffic according to the different service RFCs. How can your data and VOIP traffic be marked？（）

A.data marked with DSCP AF21，VOIP marked with DSCP EF
B.data marked with DSCP AF51，VOIP marked with DSCP EF
C.data marked with the DE-bit，VOIP marked with the CLP-bit
D.data marked with DSCP EF，VOIP marked with DSCP AF31
E.data marked with IP precedence 5 VOIP marked with DSCP EF

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單項(xiàng)選擇題

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 links
B.configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cycles
C.enable class-based traffic shaping on the VoIP traffic class
D.enable Layer 2 fragmentation and interleaving on the links
E.enable Frame Relay on the links and send voice and data on different Frame Relay PVCs

問答題

【簡答題】

根據(jù)R2上面的配置，請(qǐng)判斷pc能否反問internet。
R2：ip route 0.0.0.0 0.0.0.0 10.1.1.2
No ip classess

答案： This PC can’t access internet.&ens...

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【簡答題】 根據(jù)R2上面的配置，請(qǐng)判斷pc能否反問internet。 R2：ip route 0.0.0.0 0.0.0.0 10.1.1.2 No ip classess

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【簡答題】

根據(jù)R2上面的配置，請(qǐng)判斷pc能否反問internet。
R2：ip route 0.0.0.0 0.0.0.0 10.1.1.2
No ip classess