Which two Internet Protocol (IP) telephony devices are best categorized as infrastructurecomponents?（）A、Call management softwareB、Media Convergence Servers (MCSs)C、Voice gatewaysD、IP telephones
Which two Internet Protocol (IP) telephony devices are best categorized as infrastructurecomponents?（）
- A、Call management software
- B、Media Convergence Servers (MCSs)
- C、Voice gateways
- D、IP telephones
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Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? （）A、IP telephonesB、Voice gatewaysC、Call management softwareD、Media Convergence Servers (MCSs)
Which two packet attributes contribute to the identification of a session? （）(Choose two.)A、destination portB、TTLC、IP optionsD、protocol number
单选题What is a benefit of Internet protocol (IP) telephony?（）ASynchronizes password exchanges for call setupBEliminates the need for physical cabling in a TCP/IP networkCEnables two-way voice transmission over a packet-switched TCP/IP networkDCreates an encrypted tunnel for voice through a Transmission Control Protocol (TCP)/IP network
多选题Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? （）ACall management softwareBMedia Convergence Servers (MCSs)CVoice gatewaysDIP telephones
多选题Which two statements are true about AH?（） (Choose two.)AAH provides data integrity.BAH is identified by IP protocol 50.CAH is identified by IP protocol 51.DAH cannot work in conjunction with ESP
多选题Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? （）AIP telephonesBVoice gatewaysCCall management softwareDMedia Convergence Servers (MCSs)
多选题Which two commands would you use to view OSPF routes?（）Ashow ip route ospfBshow ospf routesCshow route protocol ospfDshow route
单选题Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（）AVoice gatewayBPrivate branch exchange (PBX)CAdvanced audio conferencing softwareDIP telephone