Reread the following passage from the article.

“Like a good water filter, the firewall is present solely to keep the bad out. Thus, it is absolutely necessary for any computer that has access to the Internet. Using the water metaphor, you can imagine the Internet is a lake or an ocean, and the firewall is the filter that makes that water drinkable.”

Extending the water metaphor above, where would antivirus software and the individual’s own attention to security fit? Write your answer in no more than three complete sentences, using at least two details from the text to support your answer.

Read the excerpt from the land. of my brothers, i was closest with robert. i suppose, in part, being the same year's children made us close, but there were other things too. we had been together practically since birth, and we always took care of each other. when i got into trouble, robert was there to pull me out of it if he could, or at least to see me through it, and i did the same for him. the passage provides evidence of why paul and robert have physical conflicts. paul and robert avoid social conflicts. paul is the least influenced by robert. paul is motivated to ask robert for .

Read the quote from zimmermann in the code book. a future government could inherit a technology infrastructure that's optimized for surveillance, where they can watch the movements of their political opposition, every financial transaction, every communication, every bit of e-mail, every phone call. everything could be filtered and scanned and automatically recognized by voice recognition technology and transcribed. it's time for cryptography to step out of the shadows of spies and the military, and step into the sunshine and be embraced by the rest of us. which question does this paragraph answer? why does zimmermann think encryption is important? what kind of encryption did zimmermann invent? how does zimmermann’s encryption work? who made encryption based on zimmermann’s work?

Which two sentences are written in subjunctive mood? take this money and go buy some clothes for yourself. i was happy because i passed the test, which i studied for. if only my umbrella would fix itself, then i could go out in this weather. i'm going on a trip to canada, but i'm not taking you with me. if i were the thief, i would have turned myself in before i got caught.