思科认证2022优质每日一练(10月17日)

1. [单选题]交换机上VLAN的功能描述中，正确的是（）

A. 可以减少广播域的个数
B. 可以减少广播对网络性能的影响
C. 可以减少冲突域的个数
D. 可以减小冲突域的容量

2. [多选题]下列哪一设备工作时，要用到OSI的七个层（一层到七层）（）

A. PC
B. 网管机
C. WEB服务器
D. 交换机
E. 路由器

3. [单选题]You are an administrator of the Ezonexam switched network and your goal is to reduce some of the administrative overhead on your network. You plan on achieving this by configuring a new VLAN for each department in the Ezonexam network.However, you need to share the VLAN information across numerous switches. Which of the following would allow you accomplish this?

A. STP
B. GVRP
C. SNMP
D. VTP
E. DHCP
F. F. None of the above

4. [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

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