[Year 12 SofDev] 2011 Post Mortem

[Mark KELLY]

Hey, Andrew. Good catch on the 12:59 boundary. I was thinking backwards on
that,

You're right. A deadline time of 12:59 means an overstay at 13:00.

Well done.  Two doggie biscuits for you.  Redeemable at McKinnon SC from
12:01 to 12:03 a.m. on any night with a blue moon.


On 18 November 2011 23:44, Andrew Pate <arp at mentonegrammar.net> wrote:

> Thanks to Mark for his insightful commentary on the exam - a much needed
> lightening of the day - and to everyone else who contributed.
>
> I have a different take on two algorithm questions:
>
> Qn C7:
> If currentTime=1300, then deadlineTime of 1259 will incur a fine, as they
> have past the time of the deadline.
>
> So my table is:
>
> dlTime  Exp outcome     Line    Reason
> 1300    none            #7      curTime is = not > dlTime
> 1259    Msg             #7      curTime IS > dlTime
> 1301    none            #7      curTime is < not > dlTime
> -1      none            #6      existence check/no car
>
> And Qn C9
> I think there are actually TWO errors in the algorithm.
> The line length(numberplate) < 6 should be <= 6 or < 7 [so is a RANGE
> CHECK error]
> AND
> The line For position <- 1 To length(numberPlate) does not work for
> zero-based arrays. Aren't they all unless specified?
> So should be For position <- 0 To Length<numberplate) - 1 [so is OFF BY
> ONE error]
>
> In Q11 is it true in a complied program that variable names are replaced
> by memory addresses at runtime so reducing variable name length would not
> actually improve performance anyway?
> It might reduce compile time, but...There is no indication whether Kirsten
> will make an "app" ie compiled or web-app therefore interpreted?
>
> Finally are the following questions really worth the marks they have
> attributed?
> C4: Answer: Response rates - reason, the system is trying to overcome time
> limits and folks driving off before being nabbed.
>        Is that worth 1+ 3 marks?
> C6a: Answer must be sorted.
>        2 marks? Or do you have to specify ascending order?
>
>
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-- 
Mark Kelly
Manager of ICT, Reporting, IT Learning Area
McKinnon Secondary College
McKinnon Rd McKinnon 3204, Victoria, Australia
Direct line / Voicemail: +613 8520 9085, Fax +613 9578 9253
kel at mckinnonsc.vic.edu.au
VCE IT Lecture Notes: http://vceit.com
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