2009年4月20日 星期一

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.

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