标题: LR 的几道题，高手帮我看看 [打印本页] 作者: AmandaChang 时间: 2007-8-23 10:41 标题: LR 的几道题，高手帮我看看 1. A firewall sits between the Internet and twoweb servers shown in the figure above. The web servers passdata to and receive data from a middleware applicationwhich send to and receive data from an Oracle database. The site is currently experiencing problems with its Webservers. Looking at the web site’s architecture, whatcomponent do you think should be added to the system forthe Web server?
Middleware application
Additional web server
Database configuration
Load balancer
Network sniffer
2. Select the three criteria by which you will identify the business processes (BPs) to use for a performance test. (3 points) Not sure
A Passed unit testing
B Mission-critical BPs
C Uses unique data
D Returns dynamic data
E Heavy throughput
F Include all BPs
G Affects legacy systems
My comment: B和E肯定是对的，但是不能确定D和G哪一个正确。
4. What information about a web site under test is important to collect if you are planning to consider network latency and packet loss in your load test?
Task distribution diagram
Peak load
Transactional concurrency
Customer geography
这到题没什么概念，但是我想task distribution diagram里应该能看出来peak load阿。不知道选哪一个。
5. What type of information will you need to gather to determine how business processes affect different components in the system architecture? This is especially useful during the load test; it can help isolate the source of bottlenecks. (1 point)
Task Distribution Diagram Controller
System Monitoring C
Transcontinental Remote Users
Business Process Mapping
6. While setting up the test environment, you are running into problems connecting a load generator to the Controller which indicates the status of the agent as ‘Down’. What are THREE ways to check the connection between the Controller and the load generator? (3 points)
Not sure
A Ping the load generator.
B Run the command line: Kill -9.
C Confirm agentservice is active and listed.
D Uninstall and re-install the load generator.
E Check firewall access.
F Turn the service agent to process.
A和C应该是对的，E和F哪一个对呢？
希望高手指教，最好能简单的说明一下理由。谢谢作者: rebecca 时间: 2007-8-23 14:56
sdlkfj5 非常关注楼主的帖子。我这几个题也是看的云里雾里的。作者: wssgily 时间: 2007-8-23 15:39
1.Load balancer
2.Mission-critical BPs . Returns dynamic data.Heavy throughput
4.Not sure, guess D
5. System Monitoring
6.Turn the service agent to process(Not sure)作者: AmandaChang 时间: 2007-8-24 17:37
谢谢wssgily。
还有没有别的意见啦，都发表一下啦。