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多选题
In a VoIP network, which three call signaling protocols are supported by the Cisco CallManager for call setup, call maintenance, and call teardown? ()
A

H·323

B

UDP

C

RTP

D

TCP

E

Media Gateway Control Protocol (MGCP)

F

session initiation protocol (SIP)


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考题 多选题Which three functions are associated with a Cisco Unified CallManager? ()Aconnects traditional telephony devices to voice over IP infrastructureBconverts analog signals to digital formatCperforms voice compressionDperforms call processingEperforms dial plan administrationFperforms signaling and device control

考题 单选题Which IP telephony component provides call processing, such as signaling, that in a traditional voice network is provided by switching equipment, such as a PBX?()A Advanced call-handling software, such as Cisco UnityB Call-management hardware and software, such as CiscoCallManagerC Client-based software, such as CiscoSoftPhoneD Voice gateways, such as the Cisco VG248 Analog Phone Gateway

考题 多选题In a VoIP network, which three call signaling protocols are supported by the Cisco CallManager for call setup, call maintenance, and call teardown?()AH323BUDPCRTPDTCPEMedia Gateway Control Protocol (MGCP)Fsession initiation protocol (SIP)

考题 多选题Which three QoS mechanisms can be configured to improve VoIP quality on a converged  network?()AThe use of a queuing method that will give VoIP traffic strict priority over other trafficBThe use of RTP header compression for the VoIP traffic.CThe proper classification and marking of the traffic as close to the source as possibleDThe use of 802.1QinQ trunking for VoIP trafficEThe use of WRED for the VoIP traffic

考题 多选题Which three features are provided by Oracle Net Services? ()AData encryption.BUser authentication.CTransparent data conversionDConfiguration and administration mechanisms.ESupport for multiple network transport protocols.