Friday, December 12, 1997NAME:
There are 15 questions on this examination. The point values associated with the questions are shown in the table above. You have 150 minutes to complete the examination. You should not consult any references while completing this examination. Show all answers in the spaces provided in the examination booklet. Paper for scrap work will be made available.
Question Points Score 1 16
2 5
3 6
4 20
5 5
6 6
7 6
8 4
9 4
10 4
11 4
12 4
13 5
14 5
15 6
TOTAL 100
- ethernet destination address
- ethernet source address
- packet length
- IP destination address
- IP source address
- TCP port number
- Error detecting code
For each example, please briefly explain the problems with the HTML shown and indicate how to modify the HTML to make it correct while producing what the author appeared to have in mind. You can either clearly mark up the code shown or write a complete revision in the space provided.
For the examples using "form" tags, you should assume that the fragment was extracted from a valid pair of opening and closing FORM tags.
<H3><FONT SIZE=+3><CENTER> 1997-98 </CENTER> <BR> <CENTER> SOME INTERESTING HEADER </FONT></CENTER> </H3>
<HR size=5> <TABLE align=left> <TD><IMG SRC="guesswhat.jpeg" WIDTH="288" HEIGHT="214"></TD> </TABLE> <P> i don't remember much...
<UL> <table> <tr> <td></td> <td> <li><A HREF="someplace.html">HOME AWAY FROM HOME</A></li> <li><A HREF="someplaceelse.html">MY NEIGHBORHOOD</A></li> <li><A HREF="elsewhere.html">PARIS</A></li> </td> <td></td> </table> </UL>
<p> Choose one of the following: <p align=center> <input type="radio" name="hereBefore" value="RadioButton"> Done This</p> <p align="CENTER"> <input type="radio" name="neverHere" value="RadioButton"> Never Tried</p>
<p> Indicate as many of the following that describe your experience: <UL> <LI> <input type="checkbox" name="Informative" value="CheckBox"> Informative <LI> <input type="checkbox" name="educational" value="CheckBox"> Educational <LI> <input type="checkbox" name="amusing" value="CheckBox"> Amusing </UL>
void begin() { red= new Slider(255,255,255,150); add(red); add(new Label("Red")); blue= new Slider(255,255,255,150); add(blue); add(new Label("Blue")); green= new Slider(255,255,255,150); add(green); add(new Label("Green")); item= new Choice(); item.addItem("Background"); item.addItem("Text"); add(item); pad= new SubCanvas(this,200,100); add(pad); redbg=255; bluebg=255; greenbg=255; redtext=0; bluetext=0; greentext=0; textOrBg="Background"; showDisplay(); }
For each of the following protocol pairs, indicate whether the first protocol is always/sometimes/never used to deliver messages by the second protocol by circling the appropriate choice. If cases where protocol A depends on protocol B and then in turn protocol B depends on protocol C, you should state that protocol A also depends on protocol C.
Suppose defective ethernet hardware was installed on all the computers on an ethernet so that none of them did the "CS" part. Would this:
Suppose that to increase reliability, extra parity bits are added to data ultimately being transmitted using on-off keying.