关于帧中继的说法，正确的是（）

【名词&注释】

互联网(internet)、路由器(router)、数据传输、一对一(one to one)、帧中继(frame relay)、是什么(what is)、源地址转换

[单选题]关于帧中继的说法，正确的是（）

A. 速率最大为1Mbit/s
B. 不提供差错校验功能
C. 可以偷占带宽
D. 数据传输质量高于DDN

查看答案&解析查看所有试题

学习资料：

[单选题]Which command on router EzonexamA will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?

A. EzonexamA(config-if) ip address 192.168.32.142 255.255.255.240
B. EzonexamA(config-if) ip address 192.168.32.143 255.255.255.240
C. EzonexamA(config-if) ip address 192.168.32.158 255.255.255.240
D. EzonexamA(config-if) ip address 192.168.32.145 255.255.255.240
E. EzonexamA(config-if) ip address 192.168.32.144 255.255.255.240
F. F. EzonexamA(config-if) ip address 192.168.32.158 255.255.255.240
G. G. None of the above

[单选题]Cisco IOS命令ip nat inside source static 10.1.1.5 172.35.16.5的作用是什么^{(what is)}()

A. 为所有的外部NAT创建一个全局的地址池
B. 为内部的静态地址创建动态的地址池
C. 它为所有内部本地PAT创建创建了动态源地址转换
D. 为内部本地地址和内部全局地址创建一对一的映射关系

[单选题]为了使配置私有IP的设备能够访问互联网，应采用的技术是()

A. NAT
B. VLAN
C. ACCESS-LIST
D. DDR

[单选题]对路由器的描述，正确的是（）

A. 单广播域，单冲突域的设备
B. 单广播域，多冲突域的设备
C. 多广播域，单冲突域的设备
D. 多广播域，多冲突域的设备

[单选题]RIP协议的管理距离是（）

A. 100
B. 110
C. 120
D. 150

[多选题]As the Ezonexam network administrator, you are required to have a firm understanding of the OSI model. Why does the data communication industry use the layered OSI reference model? (Choose two)

A. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds
B. It encourages industry standardization by defining what functions occur at each layer of the model
C. It divides the network communication process into smaller and simpler components; thus aiding component development, design and troubleshooting
D. It provides a means by which changes in functionality in one layer require changes in other layers
E. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers

[单选题]From where does a small network typically get its IP network addresses or IP block?

A. From the Internet Domain Name Registry (IDNR)
B. From the Internet Assigned Numbers Authority (IANA．
C. From the Internet Service Provider (ISP)
D. From the Internet Architecture Board (IAB．
E. None of the above

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