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Chapter05.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Chapter 5</title>
<meta http-equiv="content-type"
content="text/html; charset=ISO-8859-1">
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<h1>Chapter 5</h1>
Contents: <a href="#TrueFalse">True/False</a> | <a
href="#Multiple_Choice">Multiple Choice</a> | <a href="#Discussion">Discussion</a>
| <a href="#Programming_Exercises">Programs</a><br>
<br>
<h2><a name="TrueFalse"></a>True/False</h2>
<ol>
<li>False</li>
<li>True</li>
<li>False</li>
<li>True</li>
<li>True</li>
<li>True</li>
<li>True</li>
<li>False</li>
<li>False</li>
<li>False</li>
</ol>
<h2><a name="Multiple_Choice"></a>Multiple Choice</h2>
<ol>
<li>d</li>
<li>c</li>
<li>a</li>
<li>c</li>
<li>c</li>
<li>d</li>
<li>d</li>
<li>c</li>
<li>c</li>
<li>a<br>
</li>
</ol>
<h2>Discussion</h2>
<ol>
<li>These can be checked interactively.
<ol>
<li><tt>'</tt><tt>The knights who say, ni!'</tt></li>
<li><tt>'spamspamspamni!ni!'</tt></li>
<li><tt>'p'</tt></li>
<li><tt>'pa'</tt></li>
<li><tt>'ani'</tt></li>
<li><tt>'spam!'</tt></li>
<li><tt>'SPAM'</tt></li>
<li><tt>'NI! NI! NI! '</tt></li><br>
</ol>
</li>
<li>Answers may vary and can be checked interactively.
<ol>
<li><tt>s2.upper()[:-1]</tt></li>
<li><tt>s2+s1+s2</tt></li>
<li><tt>((s1+" "+s2+" ")*3).title()[:-1]</tt></li>
<li><tt>s1</tt></li>
<li><tt>s1.split("a")</tt></li>
<li><tt>"".join(s1.split("a"))</tt></li><br>
</ol>
</li>
<li>Answers can be checked interactively.</li>
<ol>
<li>
<pre>a<br>a<br>r<br>d<br>v<br>a<br>r<br>k</pre>
</li>
<li>
<pre>Now<br>is<br>the<br>winter<br>of<br>our<br>discontent...</pre>
</li>
<li> <tt>M ss ss pp</tt> </li>
<li> <tt>scrt</tt> </li>
<li> <tt>tfdsfu</tt></li>
</ol>
<li>Answers can be checked interactively.</li>
<ol>
<li>'Looks like spam and eggs for breakfast'</li>
<li>'There is 1 spam 4 you'</li>
<li>'Hello Susan'</li>
<li>'2.30 2.30'</li>
<li>Error -- Missing position specifier (or leading :)</li>
<li>'Time left 01:37.37'</li>
<li>Error -- There is no argument 1</li>
</ol>
<li>Private keys must be known by both parties ahead of time. When contacting
sites on the internet, say for e-commerce, there would be no practical way
for the parties to exchange the private key.</li>
</ol>
<h2><a name="Programming_Exercises"></a>Programming Exercises</h2>
<a href="code/chapter05">Code for Chapter 5 Exercises</a><br>
<br>
<br>
<br>
<br>
<br>
</body>
</html>