问题 单项选择题

由于局域网响应时间较慢,程序人员通常会把代码保留在自己的工作站上而不是在服务器上。因此,每天的服务器备份并不包括当前的源代码。检测响应时间最好的方法是()。

A.并行测试

B.综合测试设备

C.性能监控

D.程序代码比较软件

答案

参考答案:C

解析:

性能监控是对运行结果系统化的度量和评估,例如事务处理率、响应时间和错误状态影响范围。性能监控将揭示容量应用趋势,这样在响应时间恶化之前对容量进行升级。选项(a)不正确,因为并行测试要对新系统和原有系统都进行测试。选项(b)不正确,因为集成测试工具包括对真实和模拟的系统数据进行测试。选项(d)不正确,因为程序代码比较软件关注于比较老版本和新版本的程序。

单项选择题
填空题

Many animals engage in play,but homo sapiens is the only animal (1) have invented sports.Since sports are an invention,a part of culture (2) than an aspect of nature,all definitions of sports are somewhat arbitrary. (3) sports are a human universal found in every known culture or a (4) unique to modern society depends upon one’s definition of sports.Men and (5) have always run,jumped,climbed,lifted,thrown, and wrestled,but they have (6) always performed these physical activities competitively. Although all literate societies seem to (7) contests of one sort or another in which men, and sometimes women, (8) in displays and tests of physical skill and prowess,sports may be (9) defined as physical contests performed for their own sake and not for (10) ulterior end.According to this strict definition,neither Neolithic hunters nor contestants (11) religious ceremonies such as the ancient Olympic Games were engaged in sports. (12) on the stipulation that sports must be performed for their own sake (13) the paradoxical elimination of many activities which are usually thought of as (14) ,such as exercises done for the sake of cardiovascular fitness,races run (15) satisfy a physical education requirement,ball games played to earn a paycheck. (16) definition also means abandonment of the traditional usage in which"sport,"derived (17) Middle English disporter,refers to any light hearted recreational activity.In the. (18) of some 18th- century aristocrats,a game of backgammon and the seduction of (19) milkmaid were both considered good sport,but this usage of the term (20) become archaic.