【导读】
不凡考网发布2020计算机思科认证网络工程师冲刺密卷单选题答案(04.08)相关信息，更多2020计算机思科认证网络工程师冲刺密卷单选题答案(04.08)的相关资讯请访问不凡考网计算机类考试频道。
1. [单选题]A Ezonexam switch is configured with all ports assigned to VLAN 2. In addition, all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?
A. The additions will create more collisions domains.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.
E. The possibility that switching loops will occur will increase dramatically.
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
