下列关于漏洞扫描技术和工具的描述中，错误的是______。
A．X-Scanner可以对路由器、交换机、防火墙等设备进行安全漏洞扫描
B．是否支持可定制的攻击方法是漏洞扫描器的主要性能指标之一
C．主动扫描可能会影响网络系统的正常运行
D．选择漏洞扫描产品时，用户可以使用CVE作为评判工具的标准
参考答案：A
解析： X-Scanner运行在Windows平台下，主要针对Windows NT/Windows 2000/Windows XP操作系统的安全进行全面细致评估。基于网络的漏洞扫描器主要扫描设定网络内的服务器、路由器、交换机和防火墙等设备的安全漏洞。漏洞扫描器的主要性能指标有速度、发现漏洞数量、是否支持可定制攻击方法、报告和更新周期。主动扫描带有入侵的意味，可能会影响网络系统的正常运行。公共漏洞和暴露(CVE)是个行业标准，可以成为评价相应人侵检测和漏洞扫描等工具产品和数据库的基准。
| 阅读下面短文，把A-D填入文中空缺处（1－4），使短文内容完整正确，然后完成第5题。 | |
| Nowadays, more and more young people are becoming vegetarians in most Western countries. They are thought of as vegetarians and they refused to eat meat, fish, eggs, cheese and milk. 1 . Some of them just don’t eat animal products such as milk, eggs, or yogurt, but some others are strict vegetarians and they eat mainly fruit and vegetables. As we know, it is very important to have a balanced diet, especially for the teenagers who are growing up. 2 . Well, each person chooses to become a vegetarian for different reasons. The main reasons are they want to protect animals and they want to stay healthy. I decided to be a vegan when I was 15 years old. But as a vegetarian, I have had a difficult time in getting the proper nutrition(营养). 3 . Of course, being a vegetarian isn’t for everyone. 4 .
| |
| 5. Which of the following is NOT true？ | |
| A. There are many vegetarians in most Western countries. B. The main reason for being vegetarians is they don’t like eating meat. C. Not everyone should be a vegetarian. D. Keeping healthy is important to teenagers. |