1. [多选题]在配置帧中继子接口时，在物理接口上应该配置的内容是：()
A. 配置IP地址
B. 封装帧中继协议
C. 指定子接口类型
D. 设定子接口
E. 配置密码
2. [多选题]Which of the following are types of flow control? (Choose three)
A. Buffering
B. Cut-through
C. Windowing
D. Congestion avoidance
E. Load balancing
3. [单选题]路由器“特权模式”的提示符是：（）
A. >
B.
C. (config)
D. (config-if)
4. [单选题]地址转换NAT的优点是()
A. 地址转换对于报文内容中含有有用的地址信息的情况很难处理
B. 地址转换可以缓解地地址短缺的问题
C. 地址转换不能处理IP报头加密的情况
D. 地址转换由于隐藏了内部主机地址，有时会使网络调试变得复杂
5. [多选题]Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)
A. Addresses chosen by Ezonexam.com to communicate with the Internet.
B. Addresses that cannot be routed through the public Internet.
C. Addresses that can be routed through the public Internet.
D. A scheme to conserve public addresses.
E. Addresses licensed to enterprise or ISPs by an Internet registry organization.
