CCNP系列认证CCNP(642-845)单项选择题每日一练(2018.08.04)

单项选择题
Which functionality in the Cisco IOS software will enable a router to permanently act as a call agent for phones？（）
A.Cisco CallManager
B.Cisco CallManger Express （CME）
C.Cisco CallManager Gateway （CMG）
D.Cisco CallManager Voice Gateway （CMVG）
E.Media Gateway Control Protocol （MGCP）
单项选择题
Which QoS model manages the QoS requirements for the network on a per-hop behavior （PHB） basis？（）
A.best-effort delivery
B.ingress committed rate （ICR）
C.shaping and policing
D.egress committed rate （ECR）
E.Integrated Services （IntServ）
F.differentiated services （DiffServ）
单项选择题
Which statement is correct about the Cisco QoS SDM wizard？（）
A.the best-effort class will need to have its percentage entered in the QoS Policy Generation screen
B.SDM QoS wizard provides real-time validation of application usage of WAN bandwidth
C.the SDM wizard is not able to monitor QoS policing traffic
D.the SDM QoS wizard is pre-installed on enterprise routers
单项选择题
What accurately describes the usage of a Cisco AutoQoS command？（）
A.on Catalyst switches， the show auto discovery qos command is used to display the data collected during the Auto-Discovery phase
B.on Catalyst switches， the show auto qos command is used to display packet statistics of all classes that are configured for all service policies
C.on Cisco routers， the show mls qos maps command is used to verify the CoS-to-DSCP maps for egress packet queuing
D.on Cisco routers， the show auto qos command is used to display the AutoQoS interface templates， policy maps， class maps， and ACLs
单项选择题
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）
A. IP precedence
B. type of service （ToS）
C. class of service （CoS）
D. differentiated services code point （DSCP）