A.CAC is implemented in the call setup phase to allocate bandwidth resources
B.CAC is implemented in the call maintenance phase to allocate bandwidth resources
C.CAC is utilized during the call teardown phase to ensure that all resources have been released
D.CAC uses the Cisco RSVP （Resource Reservation Protocol） Agent to integrate call-processing capabilities with the underlying network infrastructure
E.CAC is implemented in the call setup phase to determine the destination of the call
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A.minimum bandwidth guarantee
B.average bandwidth guarantee
C.optimum bandwidth guarantee
D.maximum bandwidth rate
E.IP precedence
F.priority
A.the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office
B.the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial tone
C.the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial tone
D.the FXS interface connect directly to ISDN voice channels
A.the Cisco WCS is designed to support 1500 Cisco WLAN controllers and up to 50 APs
B.the Cisco WCS runs on a dedicated network device such as the Cisco 2700 network appliance
C.the Cisco WCS runs on various windows and Linux platforms
D.the Cisco WCS screen displays four main menu sheet tab consisting of Monitor， Configure， Security， and Alam
E.the Cisco WCS uses the SNMP protocol to communicate with the controllers
A.Asynchronous Transfer Mode （ATM）
B.data-link switching （DLSw）
C.Route Processor Redundancy （RPR）
D.Frame Relay （FR）
E.Metro Ethernet
F.Multiprotocol Label Switching （MPLS）
A.a class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP address
B.a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）
C.DiffServ uses the DiffServ field in the MAC header to mark frames into behavior
D.the DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field
E.the first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value
F.the primary goal of DiffServ is scalability
最新試題
Which three practices are important to the implementation of a DiffServ QoS architecture？（）
For delay sensitive traffic， what are the three best ways that are used to prevent packet loss？ （）
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）
Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）
Which two statements are correct about the signaling methods that are utilized for transmitting voice？ （）
Which two commands should be entered on a WLAN controller to remove any residual configuration？（）
What are the three models of quality of service （QoS） in a network？（）
Which of the items stated is typically the most expensive method of improving QoS across WAN links？（）
Which three functions can an Integrated Services Router perform in a VoIP network？（）
What are three factors used to determine the amount of bandwidth that is required for a single VoIP call？ （）