多项选择题 You are an experienced network administrator in an international corporation. One of your clients asks you to configure a network for a financial trading center which requires multiple high-value transactions. And the transactions are very important to the client. In such a situation, which two of the following are basic and most important requirements concerning the configuration? （）(Choose two.)

单项选择题 You have just reinstalled a VIP 6-80 in a Cisco 7500 Series router. What must you do to bring up the port adapter interfaces?（）

单项选择题 Which of the following allows network administrators to easily apply common services and employ features across Cisco switches, routers, and access points with an intuitive GUI?（）