多选题Which two statements are true about voice ports on a router？（）ACalls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.BCalls to the PSTN can be made via FXS or T1/E1 trunk ports.CAnalog and IP phones can be connected to the VoIP network

题目

多选题

Which two statements are true about voice ports on a router？（）

Calls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.

Calls to the PSTN can be made via FXS or T1/E1 trunk ports.

Analog and IP phones can be connected to the VoIP network via FXO or T1/E1 trunk ports.

Calls between analog phones that are attached to the FXS ports in a VoIP network can be completely processed by voice-enabled routers.

参考答案和解析

正确答案： D,A

解析：暂无解析

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第1题

Which two statements are true about voice VLANs？（）A、Voice VLANs are only used when connecting an IP phone and a host to distinct switch portsB、Access ports that are configured with voice VLANs will always trust the CoS that is received from IP phonesC、Access ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phoneD、Voice VLANs are configured using the switchport voice vlan vlan-ID interface configuration commandE、Voice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the portF、Enabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings

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第2题

Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）A、the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central officeB、the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial toneC、the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial toneD、the FXS interface connect directly to ISDN voice channels

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第3题

Router R1 and R2 are both configured for HSRP. Which two statements about the HSRP priorities of these two routers are true？（）A、 To assign the HSRP router priority in a standby group， the standby group-number priority priority-value global configuration command must be used.B、 The default priority of a router is zero （0）.C、 The no standby priority command assigns a priority of 100 to the router.D、 Assuming that preempting has also been configured， the router with the lowest priority in an HSRP group would become the active router.E、 When two routers in an HSRP standby group are configured with identical priorities， the router with the highest configured IP address will become the active router.

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第4题

Which two statements are true about L2TP tunnels?（） (Choose two.)A、Traffic is clear textB、Traffic is encrypted C、They are initiated by the LNSD、They are initiated by the LAC

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第5题

Which two statements are true about the configuration of voice VLANs？（）A、Static secure MAC addresses can be configured in conjunction with voice VLANs.B、PortFast is automatically enabled when voice VLANs are configured.C、PortFast must be manually configured when voice VLANs are configured.D、Voice VLANs are typically configured on uplink ports.E、Voice VLANs are typically configured on access ports.

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第6题

Which two statements are true about the role of split horizon？（）A、It is a function used by routing protocols to install routes into routing tableB、It is a function that prevents the advertising of routes over an interface that the router is usingto reach a routeC、Its function is to help avoid routing loops.D、It is a redistribution technique used by routing protocols

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第7题

Which two statements are true about network voice traffic？（Choose two.）（）A、 Voice traffic is affected more by link speed than FTP traffic is.B、 Voice traffic is affected more by packet delays than FTP traffic is.C、 Voice streams involve larger packet sizes than most TCP network traffic involves.D、 Voice traffic is more sensitive to packet loss than TCP network traffic is.E、 Voice traffic requires QOS mechanisms only in heavily loaded network segments.

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多选题Which two statements are true about voice ports on a router？（）ACalls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.BCalls to the PSTN can be made via FXS or T1/E1 trunk ports.CAnalog and IP phones can be connected to the VoIP network

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儿科护理专业实践能力

多选题Which two statements are true about voice ports on a router？ （）ACalls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.BCalls to the PSTN can be made via FXS or T1/E1 trunk ports.CAnalog and IP phones can be connected to the VoIP network

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多选题Which two statements are true about voice ports on a router？（）ACalls to the PSTN can be made via the use of FXO or T1/E1 trunk ports.BCalls to the PSTN can be made via FXS or T1/E1 trunk ports.CAnalog and IP phones can be connected to the VoIP network