41● 正确地描述了RADIUS协议的是： （62） 。
A.如果需要对用户的访问请求进行提问（Challenge）,则网络访问服务器（NAS）对用户密码进行加密，并发送给RADIUS认证服务器
B.网络访问服务器（NAS）与RADIUS认证服务器之间通过UDP数据报交换请求／响应信息
C.在这种C/S协议中，服务器端是网络访问服务器（NAS）,客户端是RADIUS认证服务器
D.通过RADIUS协议可以识别非法的用户，并记录闯入者的日期和时间
开始考试练习点击查看答案42● 在层次化网络设计方案中， （64） 是核心层的主要任务。
A.高速数据转发
B.接入Intemet
C.工作站接入网络
D.实现网络的访问策略控制
开始考试练习点击查看答案43● “<title style="italic">science</title>”是XML中一个元素的定义，其中元素标记的属性值是 （65） 。
A.title
B.style
C.italic
D.science
开始考试练习点击查看答案44● SOX is an alternative （66） for XML. It is useful for reading and creating XML content in a （67） editor. It is then easily transformed into proper XML. SOX was created because developers can spend a great deal of time with raw XML．For many of us, the popular XML （68） have not reached a point where their tree views, tables and forms can completely substitute for the underlying （69） language. This is not surprising when one considers that developers still use a text view, albeit enhanced, for editing other languages such as Jav
A.SOX uses （70） to represent the structure of an XML document, which eliminates the need for closing tags and a number of quoting devices. The result is surprisingly clear.A.semantic
B.pragmatics
C.syntax
D.grammar
开始考试练习点击查看答案45● With hundreds of millions of electronic （71） taking place daily, businesses and organizations have a strong incentive to protect the （72） of the data exchanged in this manner, and to positively ensure the （73） of those involved in the transactions. This has led to an industry-wide quest for better, more secure methods for controlling IT operations, and for deploying strong security mechanisms deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security （74） that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in （75） and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.
A.devices
B.transactions
C.communications
D.businesses
开始考试练习点击查看答案