Review

Answering the following questions will reinforce key information presented in this chapter. If you are unable to answer a question, review the appropriate lesson and then try the question again. Answers to the questions can be found in the appendix.

1. You’re a network administrator at Contoso Pharmaceuticals. Your network is connected to the Internet by a T1 line. You want to know the maximum transmission rate for a 5-KB page. With overhead, a page transmission runs about 55,360 bits. What’s the maximum transmission rate over the T1 line?
2. You’re implementing new tools on your company’s Web site. You want to find out how long it will take users to download a 90 KB page (including overhead) over a 28.8 Kbps modem and a 56 Kbps modem. How many seconds will it take each type of user to download the page?
3. Your company is implementing new services on their Web site. The new services include data access to a back-end SQL Server database. In testing and analysis, you discovered that the Add Item operation responds more slowly than you expected. You determine that the disk cost for the operation is 4.395 and the usage for that operation is 0.012345 operations per second. What’s the disk cost per user per second for the Add Item operation?
4. You’re planning your network’s capacity requirements. The site will be a transaction site that will allow users to store and retrieve information. Content will be dynamic: ASP hitting a SQL Server database. You anticipate 5,000 concurrent users at peak usage. What other steps should you take?