[Year 12 SofDev] Re: SD VITTA exam 2, multichoice #1

[James GIBNEY]

HI all,
 
three has there been some discussion in my class about question 6 in the multiple choice in sample exam 2. I have two students that are adamant that answer B is not entirely incorrect because they say you can still access the internet, web based mail &  FTP sites if port 80 is blocked. 
 
Regards
 
Jim
 
James Gibney
ICT Coordinator
St Helena Secondary College
Wallowa Rd
Eltham Nth 3095
Ph 03 94388500
Fax 03 94388555
email: jgy at sthelena.vic.edu.au
P Please consider the environment before printing this email


________________________________

From: sofdev-bounces at edulists.com.au on behalf of Timmer-Arends
Sent: Wed 17/10/2007 5:52 PM
To: Year 12 Software Development Teachers' Mailing List
Subject: Re: [Year 12 SofDev] Re: SD VITTA exam 2, multichoice #1


I know it's pedantic but I'm going to write it anyway:

Kevin wrote:
All programs can be written using these very simple constructs.
1. Sequence 
2. Repetition (aka iteration or Loops) 
3. Conditional Branching 
4. Combined Branching and Repetition 

Actually only three basic constructs are required to write any program: 1, 2 and 3.
4 is composed of two basic constructs (ie 2 and 3)

And Frank wrote:
The following implementation of a while loop that Mark Kelly found the other day, which is actually a Repeat..Until loop in your theoretical sense but using different key words, says it all....
Do
..
Loop While <condition>

This loop is subly different from a Repeat..Until (and as far as I know only available in MS versions of BASIC). It will execute the body once and then after only WHILE the condition IS TRUE. A Repeat..Until executes the body once and then continues looping UNTIL the condition BECOMES TRUE.
 
Personally, I don't think the post-test WHILE (or MS xxxBASIC's pre-test UNTIL) ought ever be shown to students! 
 
Regards
Robert T-A
Brighton SC
 
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