A.a Frame Relay header includes a 1-bit discard eligible （DE） bit to provide the class of service （CoS）
B.an ATM header includes a 1-bit DE field to provide the CoS
C.an MPLS EXP field is inserted in the Layer 3 IP precedence field to identify the CoS
D.the CoS field only exists inside Ethernet frames when 802.1Q or Inter-Switch Link （ISL） trunking is used
E.in the IEEE 802.1p standard， three bits are used to identify the user priority bits for the CoS
F.in the IEEE 802.1q standard， six bits are used to identify the user priority bits for the CoS
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A.G711
B.G726
C.G728
D.G729
E.G729A
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
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
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
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
最新試題
Which of the items stated is typically the most expensive method of improving QoS across WAN links？（）
When Cisco SDM is used to generate QoS policy， various QoS classes will be created and assigned a percentage of the interface bandwidth. Which three statements indicate the default bandwidth values that are assigned by SDM for outgoing traffic on a WAN interface？ （）
What are two reasons to implement H·323 gatekeepers？（）
When QoS levels in the Cisco Wireless Control System （WCS） are entered， which profile names are used to identify the access categories？（）
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）
What are three Cisco Unified CallManager features？ （）
What are the three models of quality of service （QoS） in a network？（）
What are three factors used to determine the amount of bandwidth that is required for a single VoIP call？ （）
Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）
Which Control Plane Policing （CoPP） statement is true？（）