CS526 S2012 Midterm Review
Previous Exam
CS526 S2012 midterm https://athena.uccs.edu/secure/cs526/CS526S2012midterm.html will be on-line examine. Currently it is a test web page for tesing the secure access. Make sure you get a "submit successful" response from the cgi script on athena. The "Test" label will be removed when real examine is uploaded. You need a client certificate to acccess it. Same as the one I signed for hw3. Import your .p12 file to a browser to setup the access. The web page will be turned on 3/14, 5:50pm. Make sure it does not have (Test) in the title. Hold down shift key and hit reload to avoid the old test cached copy. Open book, Open note. You have until 11:59pm Wednesday to submit.
Use your UFP login as username and the your student ID without dash
as password to login and submit your answer. Make a hard copy for your own record.
Introduction to CDN
- What is the first mile problem? What is the last mile problem?
- What are client cache server, edge cache server, and mirror server? How
are they used? What the advantages and disadvantages?
- Comparison of Cluster-based Web System, Virutal Web Clusters, and Distributed
Web Systems. Classify a system based on the taxonomy. F5 3DNS (now call Big-IP Global Traffic Manager);
- The access of a document on a company shows an akamai edge server url refreshed on the url box. How do you classify this web system (the company's web server + akamai edge server systems)?
Web Hosting and Secure Access with Apache
- Basic httpd.conf configuration for web server, cache server, and reverseproxy
server.
- Comparison of the three virutal web hosting techniques.
LVS
- Overview article on LVS.
- What are the three basic configurations of LVS?
- What are advantages and limitations and potential drawbacks of each configuration?
- What the IP address/Mac addres changes in the packet flow among director,
real server, and client
LCS Content Switch
- What are the advantages of using content switch as opposed to layer 4 switch such as LVS?
- What is TCP delayed binding and how to improve its processing?
- How to imporve the content switching rule matchig?
- Current content switches do not take into consideration of accurate server load and bandwidth between real servers and client. How we would you schedule the real servers based on these additional info?
