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VoIP（Voiceover Internet Protocol），中文就是通过IP数据包发送实现的语音业务。
参考答案
更多 “VoIP（Voiceover Internet Protocol），中文就是通过IP数据包发送实现的语音业务。” 相关考题
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与OSI参考模型一样,TCP(Transfer Control Protocol)／IP(Internet Protocol)协议(传输控制协议／网际协议)也分为七层。
A．错误B．正确
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The Internet is a ()system of interconnected computer networks that use thestandard Internet protocol suite (TCP／IP) to serve several billion users worldwide.
A.globalB.regionalC.localD.national
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IPv6 is short for“Internet Protocol Version 6”．IPv6 is the “next generation” protocol designed by the IETF to（ ）the current version Intemet Protocol，IP Version 4("IPv4”)． A．substitution B．swap C．switchover D．replace
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（ ）is a client/server protocol for transferring files across the Internet．A．POP3B．IMAPC．FTPD．HTTP
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TCP/IP is a communication protocol, which provides many different networking services. The TCP/IP Internet protocol suite is formed from two standards: the TCP （Transmission Control Protocol） and the IP（Internet Protocol）.（72） means it is on the transport layer.A.ISOB.IPC.OSID.TCP
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在互联网技术中，缩写ISP的中文全名是______。A．互联网服务提供商(Internet Service Provider)B．互联网服务产品(Internet Service Product)C．互联网服务协议(Internet Service Protocol)D．互联网服务程序(Internet Service Protocol)
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Which three statements describe the User Datagram Protocol (UDP)?()
A.UDP provides delivery notification and error checking mechanisms.B.UDP is faster than the Transmission Control Protocol (TCP).C.UDP application examples include DNS and VoIP.D.UDP is an application layer protocol.E.UDP uses a best effort delivery approach.
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【A popular service that has attercted the interest of companies and has home users alike is the sending of voice signals over an IP-based network, such as the Internet. The practice of making telephone calls over the internet has had a number of different names, including packet voice, voice over packet, voice over the internet, internet telephone, and Voice over Ip（Voip）. But it appears the industry has settled on the termVoice ove IP in reference to the internet protocol, which controls the transfer of data over the internet. There are currently three ways to deliver VoIp to users, the first technique is found at the corporate level. Many companies are offering VoIP systerms that operate over a local area network. These systems involve a fair amount of equipment, such as VoIP servers, special IP-enabled telephones, and routers that can direct telephone calls. Today a large portion of corporate sites have converted their older internal telephone systems to VoIP systems that opreate over a LAN, thus converging two systems into one. A second common solution is the one often encountered at home. Using existing telephones, a special converter is added between the telephone and a high speed internet（DSL or cable modem）connection. The converter digitizes the voice signal and creates a stream of packets that are then sent over an ip connection.The third technique involves smart cell phones. Never cell technologies are all packet-based, thus requiring a telephone call to be converted to digital packets and sending those packets over IP networks.】From the paragraph above，a popular service that has attracetd the interest of companies and home users,is termed as （） . The data transfer over the Internet is controlled by the （） . At corporate level, many companies have replaced their older internal telephone systerms with （） that oprerate over a local area network.A、voice over the internet B、voice over packet C、Voice over IP D、internet telephony A、packet B、internet protocol C、industry D、VoIp servers A、VoIP systems B、IP-enablde telephones C、VoIP servers D、routers
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The Internet is based on connectionless end-to-end packet service, which traditionally provided best-effort means of data （请作答此空）using the Transmission Control Protocol/Internet Protocol Suite. Although the （ ）design gives the Internet its flexibility and robustness, its packet dynamics also make it prone to congestion problems,especially at （ ）that connect networks of widely different bandwidths.The initial QoS function set was for internet hosts.One major problem with expensive wide-area（ ）links is the excessive overhead due to small Transmission Control Protocol packets created by applications such as telnet and rlogin. The Nagle （ ），which solves this issue,is now supported by all IP host implementations.A.transformation
B.transportation
C.processing
D.progressing
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Simple Network Management Protocol (SNMP) is an Internet Standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device（）. SNMP is a component of the Internet Protocol Suiteas defined by the Internet（ ）Task Force. SNMP operates in the（ ）layer of the Internet protocol suite. All SNMP messages are transported via User（请作答此空）Protocol. An SNMP-managed network consists of three key components: a) Managed devices, b) （ ）(i.e.，software which runs on managed devices), and c) Network management station (NMS) (i.e.， software which runs on the manager).A.Datum
B.Datagram
C.DatA.Packet
D.DatA.Message
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当HGU中某个WAN连接的服务模式中显示为”TR069（）VOIP（）INTERNET”,表示A、该WAN连接的业务优先顺序为TR069,VOIP,INTERNET;B、TR069,VOIP,INTERNET三者之一可以通过该WAN连接;C、通过TR069来配置VOIP,INTERNET业务;D、TR069,VOIP,INTERNET三种业务共用该WAN连接;
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Internet Protocol version 6 （IPv6） is the next-generation Internet Layer protocol for packet-switched internetworks and the Internet. IPv6 router solicitation is（）A、A request made by a node for the IP address of the local routerB、A request made by a node to join a specified multicast groupC、A request made by a node for a DHCP provided IP addressD、A request made by a node for the IP address of the DHCP server
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Which three statements describe the User Datagram Protocol (UDP)?（）A、UDP provides delivery notification and error checking mechanisms.B、UDP is faster than the Transmission Control Protocol (TCP).C、UDP application examples include DNS and VoIP.D、UDP is an application layer protocol.E、UDP uses a best effort delivery approach.
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IPSec中定义密钥交换的协议是（）。A、IKE（internet key exhcnage）B、PAP（password authentication protocol）C、CHAP（challenge handshake authentication protocol）D、ESP（encapsulation seurity payload）
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How is network layer addressing accomplished in the OSI protocol suite?（）A、Internet Protocol addressB、Media Access Control addressC、Packet Layer Proto col addressD、Network Service Access Point addressE、Authority and Format Identifier address
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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·323B、 UDPC、 RTPD、 TCPE、 Media Gateway Control Protocol （MGCP）F、 session initiation protocol （SIP）
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Which common Internet protocol allows for retrieval of e-mail from a server？（）A、ISPB、POPC、FTPD、SMTP
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单选题The Internet is a （）system of interconnected computer networks that use thestandard Internet protocol suite (TCP/IP) to serve several billion users worldwide.A
globalB
regionalC
localD
national
考题
单选题Internet Protocol version 6 （IPv6） is the next-generation Internet Layer protocol for packet-switched internetworks and the Internet. IPv6 router solicitation is（）A
A request made by a node for the IP address of the local routerB
A request made by a node to join a specified multicast groupC
A request made by a node for a DHCP provided IP addressD
A request made by a node for the IP address of the DHCP server
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多选题Which three statements describe the User Datagram Protocol (UDP)?（）AUDP provides delivery notification and error checking mechanisms.BUDP is faster than the Transmission Control Protocol (TCP).CUDP application examples include DNS and VoIP.DUDP is an application layer protocol.EUDP uses a best effort delivery approach.
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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？（）AH323BUDPCRTPDTCPEMedia Gateway Control Protocol (MGCP)Fsession initiation protocol (SIP)
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判断题VoIP（Voiceover Internet Protocol），中文就是通过IP数据包发送实现的语音业务。A
对B
错
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