多项选择题
A. Denmark exchanges with Utah, Paris, and Berlin.
B. Utah exchanges only with Denmark.
C. Berlin exchanges with Denmark, Utah, and Paris.
D. Paris exchanges only with Denmark.
E. Denmark exchanges with only Paris and Utah.
多项选择题 Which of the following are characteristics of named access lists?（）
单项选择题 A default Frame Relay WAN is classified as what type of physical network?（）
单项选择题 A network administrator is designing a Cisco network for a large company. The network must be able to use minimal bandwidth for routing updates, converge quickly, and support VLSM, CIDR, IP and IPX. Which routing protocol will best fit the requirements of this network?（）