Well, this semester is almost over...only a couple weeks left! So, here are my three facts about tutorial nine:
1). worm: A worm, which is a variation of a virus, is a self-replicating program that is commonly sent in e-mail attachments. I am not very familiar with viruses because I never had one on my computer. I believe it is important to learn about viruses, so that you know how to aid in the prevention.
2). necessity threats: I have never heard of something like this, but the book states that it occurs when an attacker disrupts normal computer processing or denies processing completely. The book has a good example of something like this; if an ATM transaction were to take 30 seconds instead of 2 seconds. This would be an intolerable slow speed and the bank would lose its customers.
3). white hat hacker vs. black hat hacker: Computer professionals use those two terms to distinguish between people who use their knowledge for good purposes and those who commit illegal acts. I thought this was very interesting.
Sunday, November 29, 2009
Wednesday, November 11, 2009
Tutorial 7
Here we go again...almost done with the semester!
Three things that I learned from this tutorial are as follows:
1). Wireless Mesh Network: It is a type of wireless local area network that is used to extend the reach of wi-fi hotspots. It is commonly used on campuses, airports, hotels, and even big companies use it. I didn't know that you needed to extend the reach of a regular wi-fi network in order to use it in larger places.
2). Bluetooth: I always had a hard time understanding what bluetooth meant exactly. Bluetooth lets you connect compatible devices using radio waves, instead of wiring them through a LAN. I think this is really cool. I believe people use it to send music to each other over cell phones, etc.
3). Wardriving: This was really interesting to me. I knew that people did this kind of stuff, but I didn't know there was even a name for it. Wardriving means driving through a neighborhood with a computer searching for houses that have wireless Internet, so they can gain access to it for free. Hackers commonly do this to gain access to information.
Three things that I learned from this tutorial are as follows:
1). Wireless Mesh Network: It is a type of wireless local area network that is used to extend the reach of wi-fi hotspots. It is commonly used on campuses, airports, hotels, and even big companies use it. I didn't know that you needed to extend the reach of a regular wi-fi network in order to use it in larger places.
2). Bluetooth: I always had a hard time understanding what bluetooth meant exactly. Bluetooth lets you connect compatible devices using radio waves, instead of wiring them through a LAN. I think this is really cool. I believe people use it to send music to each other over cell phones, etc.
3). Wardriving: This was really interesting to me. I knew that people did this kind of stuff, but I didn't know there was even a name for it. Wardriving means driving through a neighborhood with a computer searching for houses that have wireless Internet, so they can gain access to it for free. Hackers commonly do this to gain access to information.
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