Course Reflection

In fact, I enjoy this course a lot. Different from computer science course, comm201 is more flexible and not too serious. At the first, I did not expect too much about this course, because I know there are a… lot of skills and aspects in this topic. I just want to learn something different and new. I think this course make it. By the way, I like the textbook so much. The information is useful and latest. I learn a lot of knowledge from the book that I think it will never be taught in a formal computer science course. It really extends my knowledge. I will keep it and read more about the content. The most impressive project is “comic book”. I never have done this before. Finally, I can have my own comic that is so cool! In the end, I just want to say thank you, I have a great experience here : )

Assignment 7

1.
Clean up the crap that gunks up the hard drive and slow the online activities to a crawl, by using junk-cleaning program.

2.
I like use junk-cleaning program to clean up the unnecessary stuff that occupy memory and slow down the speed.

3.
A. It can erase the file and also writing over them with 1 and 0.
B. It can keep your information from stealing and make sure all magnetic particles that store the information lose all record.

4.
A. When we visit some website, they embed a little text file, called cookie.
B. Good: Cookie can let the website identify users and recommend products.
Bad: It may intrude into privacy.

5.
A. Program that record every keystroke you and send the information back.
B. Lavasoft’s Ad-Aware Personal, Microsoft’s Windows Defender
C. They are actually spyware promulgator. Before install them search for the name and product at Symantec.com.

6.
A. Phishing is a scam that sends you an e-mail by pretending the e-mail is from some company or organization, in order to get your personal information. Pharming is a type of identity theft committed when you land on a phony web site.
B. Yes, but I just ignore those scams.

Assignment 6

1.
A. Wi-Fi just stands for Wi-Fi

B. Wi-Fi is a way to replace data cables and let users to connect internet everywhere. The particular frequencies they use to transmit are unlicensed, meaning anyone can use them without having to obtain a license from the government.

2.
A. You can check the logging function which lets you see what Web sites have been accessed recently, check your computer security software and use WallWatcher, a logfiller program.

B. Hide the network.
Encrypt the network.

3.
A. That is horrible, I never think about that. Although I feel convenient if there is an open wireless connection to use, it will also run the risk of helping the crime. I think I will hide my network.

B. No, in the end the author said that no one has been charged yet. But I think we still have to prevent this situation happen. No one will be happy if the crime is happen. Especially access your internet.

4.
A. The traditional 911 service does not work.
Power and network outage.

B. Yes, actually I use Skype a lot. It really cheap! Especially for the international call.

5.
A. He declares email bankruptcy and sent the message to all the folks.

B. It must be brave enough to do that. I think I better learn how to manage my e-mail account that mention in the book to keep this situation happen.

6.
A. Don’t let spammers know you exist.
B. Don’t ever reply to a spam or click the “unsubscribe” link.
C. Don’t ever buy anything advertised via spam.