Refer to the exhibit. What type of interface will connect the voice gateway router R1 to the analog phone and the fax machine?（）
A.the analog phone will be connected to the FXS port， and the fax machine will be connected to the FXO port on router R1
B.the analog phone will be connected to the FXO port， and the fax machine will be connected to the FXS port on router R1
C.both devices will be connected to the FXS port on router R1
D.both devices will be connected to the FXO port on router R1
E.both devices will be connected to the E and M ports on router R1
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A.voice gateways with analog interfaces need a gatekeeper to convert analog signals into digital format before voice is encapsulated into IP packets
B.voice gateways need a gatekeeper to interconnect the VoIP networks the PSTN network
C.voice gateways with Cisco Unified CallManager Express （CME） can permanently act as a call agent for IP phones
D.voice gateways equipped with a DSP module can take the role of the call agent during WAN failure.
A.in global configuration mode， apply the service policy and use the qos pre-classify
B.in global configuration mode， apply the service policy but do not use the qos pre-classify command
C.apply the service policy on the physical interface but do not use the qos pre-classify
D.apply the service policy on the tunnel interface but do not use the qos pre-classify command
E.apply the service policy on the tunnel interface and use the qos pre-classify command
A.business-critical
B.high priority
C.middle class
D.voice
E.best effort
F.scavenger
A.end-to-end network delay times that exceed 50 ms for real-time traffic are considered unacceptable
B.end-to-end network delay times that exceed 250 ms for real-time traffic are considered unacceptable
C.end-to-end network delay is not a factor as long as the delay is consistent
D.some packet loss can be corrected by codec algorithms
E.RSVP handles voice packet retransmission
F.fragmentation is a result of packet loss
A.analog trunks that provide the Survivable Remote Site Telephony (SRST) feature
B.analog trunks that provide VoIP gateway functionality
C.analog trunks that connect a gateway to plain old telephone service (POTS) device such as analog phones, fax machines, and legacy voice-mail systems
D.analog trunks that connect a gateway to a central office (CO) or private branch exchange (PBX)
最新試題
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）
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What is an advantage of the IntServ QoS model？（）
Which two statements about the Wi-Fi Multimedia （WMM） standard are true？（）
Which two statements are true about Voice over IP （VoIP） packet delivery in a digital infrastructure？ （）