更多"Internet Protocol videoconferencing"的相关试题:
[多项选择]Internet Protocol videoconferencing (IP/VC) provides which two business benefits? （）
A. Reduced travel time for instructors responsible for different geographic sites
B. Real-time discussions of patient information among remote medical teams
C. Improved morale and reduced turnover among employees who receive timely business Updates
D. Increased sales and customer satisfaction due to current product information disseminated simultaneously to a global sales force by headquarters
[多项选择]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
[单项选择]Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（）
A. IP telephone
B. Voice gateway
C. Private branch exchange (PBX)
D. Advanced audio conferencing software
[单项选择]What is a benefit of Internet protocol (IP) telephony?（）
A. Synchronizes password exchanges for call setup
B. Creates an encrypted tunnel for voice through a Transmission Control Protocol (TCP)/IP network
C. Enables two-way voice transmission over a packet-switched TCP/IP network
D. Eliminates the need for physical cabling in a TCP/IP network
[单项选择]IP协议的报文头中2字节的IP protocol type表示了IP数据报文携带的内容，例如：01代表ICMP报文，那么代表TCP报文的数值是（）。
A. 6
B. 17
C. 20
D. 89
[单项选择]●TCP/IP communication protocol contains four layers.From bottom to top,the four layers are（）
A. network interface layer,internet layer,transport layer and application layer
B. internet layer,network interface layer,transport layer and application layer
C. network interface layer,transport layer,network interface layer and application layer
D. application layer,transport layer,internet layer and network interface layer
[填空题]IGMP（Internet Group Membership Protocol）采用D类IP地址生成多路广播的组。D类IP地址格式规定前面4位是（），后面28位用作多路广播地址。
[单项选择]Which protocol is an open standard protocol framework that is commonly used in VPNs,to provid secure end-to-end communication?（）
A. L2TP
B. IPsec
C. PPTP
D. RSA
[判断题]Syslog Protocol，一种工业标准的协议。把一个设备的通告信息通过IP网络传递给事件信息接收者。
[简答题]IP协议属于Routed Protocol还是属于Routing Protocol，为什么？
[单项选择]IP(Internet Protocol)是指网际协议，它对应于开放系统互联参考模型OSI 7层中的( )层。
A. 物理层
B. 数据链路层
C. 传输层
D. 网络层
[单项选择]IP(Internet Protocol)是指网际协议，它对应于开放系统互联参考模型OSI七层中的
A. 物理层
B. 数据链路层
C. 传输层
D. 网络层
