Lei Shi

ITS 380

Chapter 3


Case Study Question

1.      Why does Akamai need to geographically disperse its servers to deliver its customers’ Web content?

Akamai can content and number of users. The data verification at receiver and acknowledgement to sender. Akamai has 7300 servers around the world and 4 to 10 times faster.

2.      If you wanted to deliver software content over the Internet, would you sign up for Akamai’s service? Why or why not?

Yes. Akamai replicates the information and puts the information on local servers, so users can access the content quicker and easier.

3.      What advantages does an advertiser derive from using Akamai’s service?  What kinds of products might benefit from this kind of service?

It provides enterprises with the intelligence generated by the Internet's most accurate and comprehensive knowledge base of the Internet network activity. Also it provides a highly accurate base with the worldwide coverage. People can see several interesting visualizations of the internet that log basic real time web activity.

The products: like streaming, license delivery, net storage, http downloads, global traffic management.

4.       Do you think Internet users should be charged based on the amount of bandwidth they consume, or on a tiered plan where users would pay in rough proportion to their usage?

On a tiered plan where users would pay in rough proportion to their usage.


1.      What are the three basic building blocks of the Internet?

Packet switching, the TCP protocol, and client/server computing.

5.      What technological innovation made client/server computing possible?

The development of personal computers and local area networks” made client/server computing possible.

10. What is the goal of the Internet2 project?

      To facilitate the development, deployment, and use of revolutionary Internet technologies.”  It provided an environment to test and enhance the future of next-generation technologies.

15. What are the basic capabilities of a Web server?

      It should serve files to users. Also the security is important and necessary.

20. Why are mobile apps the next big thing?

People use mobile apps, almost 75% of online shoppers are mobile shoppers as well. Apps can be used for everything. And it increased use/purchasing from tablets.



Call or visit the Web sites of a cable provider, a DSL provider, and satellite provider to obtain information on their Internet services. Prepare a brief report summarizing the features, benefits, and costs of each. Which is the fastest? What, if any, are the downsides of selecting any of the three for Internet service (such as additional equipment purchases)?

I visited Xfinity, CenturyLink, and DIRECTV. For Xfinity, it costs 44.99/month, and for the first 12 months with a 1-year agreement, can watch popular channels like FX, TLC, HGTV, Bravo. For CenturyLink, it costs 19.95/month up to 12 Mbps, requires unlimited nationwide calling, another plan is 104.95/month up to 12Mbps+unlimited nationwide calling+directv choice package. For DIRECTV, it costs 50/month, select 145+ channels for 12 months, can watch your TV data-free on AT&T wireless.

I think CenturyLink has more choice include the internet. But the price is little bit higher than others.