單項(xiàng)選擇題Which codec standard requires a bit rate of 64 kbps to maintain a mean opinion score of 4.1?()

A.G711
B.G726
C.G728
D.G729
E.G729A


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1.單項(xiàng)選擇題

Refer to the exhibit. What mechanism should be used to increase the bandwidth availability and optimize the link usage throughout the network for voice traffic?()

A.TCP header compression on router R1
B.TCP header compression on router R2
C.RTP header compression on router R1
D.RTP header compression on router R2
E.payload header compression on router R1
F.payload header compression on router R2

2.多項(xiàng)選擇題AutoQoS Discovery has run on the Acme Entertainment Company’s network for several days and has produced the suggested policy shown in the exhibit. Acme wishes to 1) allow more bandwidth for browser-type traffic because it is the job of many of their employees to be browsing the web as a part of their job, and 2) to allow greater bandwidth for file transfers because they expect an upcoming surge in movie uploads and downloads. Which two statements would you replace to best accomplish those goals without sacrificing voice quality? ()

A.in class class-default, replace fair-queue with bandwidth remaining percent 50 
B.in class autoqos-transactional-Fa0/1, replace bandwidth remaining percent 40 with bandwidth remaining percent 20 
C.in class autoqos-transactional-Fa0/1, replace bandwidth remaining percent 40 with bandwidth remaining percent 30 
D.in class autoqos-Bulkl-Fa0/1, replace bandwidth remaining percent 19 with bandwidth remaining percent 25 
E.in class autoqos-Scavenger-Fa0/1, replace bandwidth remaining percent 1 with bandwidth remaining percent 10 
F.in class autoqos-Signaling-Fa0/1, replace bandwidth remaining percent 4 with bandwidth remaining percent 1 

3.多項(xiàng)選擇題What are three considerations when choosing the QoS model to deploy in a network?()

A.the routing protocols being utilized in the network
B.the applications utilizing the network
C.the traffic destinations
D.network addressing scheme
E.cost of implementation
F.the amount of the control needed of the resources

4.多項(xiàng)選擇題

Refer to the exhibit. Both routers have been configured as VoIP gateways. They must also support traditional telephony devices to connect to analog telephones. Which two configuration changes would correctly support the voice requirements?()

A.on each router, under the dial-peer voice 1 pots configuration, add the port fa0/0 command
B.on each router, under the dial-peer voice 1 pots configuration, add the port 1/0/0 command
C.on each router, configure dial-peer voice 1 as a voip connection and configure dial-peer voice 2 as a pots connection
D.under the dial-peer voice 1 pots configuration, change the destination pattern of 1111 to 2222 on the R1 router, and 2222 to 1111 on the R2 router
E.under the dial-peer voice 2 voip configuration, change the destination pattern of 1111 to 2222 on the R1 router, and 2222 to 1111 on the R2 router
F.under the dial-peer voice 2 voip configuration, change the destination target address of 10.2.2.2 to 10.1.1.1 on the R1 router, and the destination target address of  10.1.1.1 to 10.2.2.2 on the R2 router

5.多項(xiàng)選擇題Cisco AutoQoS takes the interface type and bandwidth into consideration when configuring which three QoS features?()

A.voice compression methodology
B.LLQ
C.CRTP
D.routing protocol
E.LFI
F.trust boundary

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