[Year 12 IT Apps] VITTA ITA exam 2 - my ideas of errata

Mon Oct 15 17:01:05 EST 2007

hmmm.  I thought I was working from the officially published exams, but 
I did some proofreading of them and might have been left with older 
versions.

Or VITTA corrected and reissued them after I notified them of my worries 
earlier last month.

Not sure!  Still, if your copy is correct, rejoice  :-)

Geoff Moss wrote:
> Mark
> I wonder, are there 2 sets of papers and suggested answers out there?
> 
> For Question 3, my question paper said:
> "Which type of backup only includes those files that have changed since 
> the last full backup of the system?"
> 
> Based on my paper, for question 3 you have altered the question, hence 
> your question.  Differential backup is correct, as it correctly answers 
> the question.  Incremental backups may be done daily and each 
> incremental backup will be the backup since the last Full backup and the 
> previous incremental backup/s.  (Incremental could be correct if it was 
> the first incremental backup since the full backup - but let's not add 
> to the question.)
> In Short Answer Question 5 the suggested answers I received from VITTA 
> were:
> 
> ModelID = Integer
> 
> ModelStreetAddress = Text  (There is no alphanumeric data type for 
> Access, text allows the use of alphanumeric characters)
> 
> ModelHomePhone = Text
> 
> ModelMobilePhone = Text
> 
> For 5b, the suggested VITTA answers in my set were:
> 
>      Validation rule: (>=3000 and <=3999) or (>=8000 and <=8999)
> 
>      Validation text: Please enter a postcode beginning with a 3 or an 8.
> 
> 
> 
> 
> 
> This agrees with your contention.
> 
> Question 11
> a.  Physical security measures
> Mark said:
>> Suggested answer:
>>
>> • A voice recognition device can be used to authorise users to access
>> rooms, equipment or information.
>>
>> Physical?  Electronic, surely!  And not a very sensible option, if you
>> ask me.
> 
> Voice recognition was listed in logical, not physical, security measures 
> in the suggested answers.
> 
> Mark adds:
>> These all seem inappropriate for such a small setup.  What about locked
>> doors, barred windows?
> 
> and I concur
> 
> Question 11 c.  suggested answer was:
> Software: If a server is purchased to act as a central storage location 
> for the network, a network operating system would be a good addition. 
> This software controls the traffic on the network and defines how the 
> devices connected in the network will communicate with each other.
> 
> Other software may include: email, file transfer protocol, Internet browser
> 
> 
> For Question 11d. the question in my set of exam papers was:
> d. Explain how Privacy legislation impacts upon Adam’s security and 
> storage measures.
> 
>  However the suggested answer included reference to the Privacy 
> Amendment (Private Sector) Act 2000.
> 
> Question 12:
> Mark said:
>> The answer is a bit of a mess.
>> Tasks B and D are 14 weeks in the chart, not 6 as in the data.
>> This pushes tasks E and I way too far late.
> 
> In the chart and data tasks B and D were 6 weeks each in my qusetion 
> paper, but task I was 5 weeks, not 4 in the chart.
> 
> Question 12b.
>> b. Which task cannot begin without others being finished?
>> Suggested answer: J
>>
>> An unfair question.  I assume the “S” on the end of “others” demands a
>> task that has more than one predecessor.  It should say so.  To be fair
>> it should ask which task has to wait for more than one other task to
>> finish before it can begin.  I bet 99% of kids would be confused and say
>> that there are 6 viable tasks.
> 
> I fully concur.
> 
> Hence my starting question: I wonder, are there 2 sets of papers and 
> suggested answers out there?
> Raise you 3 cents!
> Geoff Moss
> 
> RMIT
> 
> ---------------------
> ----- Original Message ----- From: "Mark Kelly" <kel at mckinnonsc.vic.edu.au>
> To: "Year 12 IT Applications Teachers' Mailing List" 
> <itapps at edulists.com.au>
> Sent: Monday, October 15, 2007 1:36 PM
> Subject: [Year 12 IT Apps] VITTA ITA exam 2 - my ideas of errata
> 
> 
>> Hi all.  I could not find errata for VITTA ITA exam 2 on the VITTA site,
>> so here are my thoughts.  Take them as you will.  I don't aim to offend.
>>
>> -- 
>>
>> VITTA ITA Practice Exam 2
>>
>> SECTION A – Multiple-choice
>>
>> Question 1
>> Which of the following enables several LANS to connect over a WAN?
>> Suggested answer: D. Router.
>>
>> A router protects a LAN from the outside world, but its role is not
>> principally to enable communications.  I suspect the best answer would
>> be a modem.
>>
>> Question 3
>> Which type of backup uses two sets of backup media and backs up the most
>> recent changes on the second media?
>> Suggested answer: B. Differential.
>>
>> This can’t be right.,  The question is very odd.  Two sets of backup
>> media? From http://www.backuptool.com/incremental%20backup.htm...
>>
>> "three backup modes:
>> • Full: All files that match your selection are included into the backup.
>> • Incremental: Only those files will be included which have been changed
>> since the last backup.
>> • Differential: Only those files will be included which have been
>> changed since the last FULL backup."
>>
>> Question 4
>> The main purpose of validating a solution is to
>> Suggested answer: C. Ensure that data entered into the computer is
>> correct and complete.
>>
>> No!  Validation ensures data is reasonable, not correct!
>>
>> Question 5
>> The manager of Nail Nirvana needs to decide whether one of the nail
>> technicians can take holiday leave in
>> October. What type of decision needs to be made?
>> Suggested answer: B. Tactical.
>>
>> I’d argue operational.  It’s a pretty low-level decision, and not aimed
>> to accomplish a larger strategic goal.
>>
>> Question 6
>> A real estate agency that is closing down would like to sell its client
>> database to another agency in order to recoup some of its losses. What
>> privacy legislation should influence the real estate agency’s decision?
>> Suggested answer: A. Privacy Amendment (Private Sector) Act 2000.
>>
>> No. The amendments are no longer part of the laws to be discussed in
>> ITA.  Refer to the definition of “Legal obligations” in the study
>> design, page 50.
>>
>> Question 12
>> Which form of documentation is not usually provided in on-line form?
>> Suggested answer: B. User manual.
>>
>> This is strange.  I’ve seen many online user manuals.  And does “online”
>> mean “on the internet”, or just “electronic”?  There’s a big difference.
>>  If  it’s properly interpreted as “on the internet” then the answer is
>> clearly “tool tips” or “context-sensitive” which are not used in a
>> website.  I’ve hardly ever seen quick-start guides online.  In fact,
>> “user manual” is the worst possible answer of the 4.
>>
>> Question 20
>> Two widely used formats for on-screen user documentation are
>> Suggested answer: A. PDF and Hypertext.
>>
>> PDF is primarily designed, AFAIK, as a printable format!  It lacks most
>> of the distinctive features of documentation that is primarily designed
>> to be viewed onscreen, such as animation, hyperlinks, transitions etc.
>>
>> SECTION B – Short answer Questions
>>
>> Question 1
>> Explain how a modem enables users to access the Internet.
>>
>> Sample answer: A modem modulates digital data it receives from a
>> computer into an analog signal so that it can be transported over
>> telephone lines. The receiving modem demodulates the analog signal
>> received from the telephone line into a digital signal so that the
>> receiving computer can receive it. This “translation” of signals is
>> required so that communication across the Internet can take place.
>>
>>
>> A modem is, for most people today, a digital device for ADSL or cable
>> internet that has no modulation or demodulation happening!  The question
>> should have referred to analogue modems if it wanted this answer.
>>
>>
>> Question 5
>> Marvellous Modelling wants to keep a database of its models and intends
>> to set up the following fields:
>>
>> Field Data Type
>> ModelId Primary Key
>>
>> No.  A primary key is not a data type
>>
>> ModelFirstName Text
>> ModelLastName Text
>> ModelStreetAddress Alphanumeric
>>
>> Which DBMS offers alphanumeric type? Text type is used for pure text or
>> typable characters (i.e. alphanumeric)
>>
>> ModelPostcode Number
>> ModelHomePhone Number
>> ModelMobilePhone Number
>>
>> Arghhh, no.  Phone numbers should not be stored as numbers.  They
>> exclude characters like spaces, parentheses, + for international dialing
>> etc.
>>
>> b. Determine validation rules and validation text for two of the fields.
>> Field: ModelPostcode
>> Suggested answer: Validation rule: >=3000 and <=3999
>>
>> A quibbly 'No': New Melbourne postcodes include numbers in the 8000 
>> range.
>>
>> Validation text: Please enter a postcode beginning with 3.
>>
>> Field: ModelHeight
>>
>> Suggested answer: Validation rule: >=165
>> Suggested answer: Validation text: Please enter a number greater than or
>> equal to 165
>>
>> A silly rule, if you ask me.  Models MUST be tall nowadays?  Including
>> hand models and child models?
>>
>> Question 11
>> Adam, an accountant and owner of a growing taxation business is
>> concerned about the security of his data as his clientele base expands.
>> Currently, Adam and his wife Anna (who is also an accountant) work on
>> standalone computers and save their data daily to the hard drive and
>> then back up the week’s data on CD every Saturday morning. The CD’s are
>> kept in a locked safe in their house. Adam and Anna also have individual
>> Internet and email access. Adam has a broadband connection while Anna’s
>> Internet connection is dial up and ties up the family phone when she is
>> using it. Adam has begun advertising for an assistant to help them with
>> administrative tasks such as producing business correspondence,
>> answering the phone, photocopying, etc.
>>
>> a. Suggest and describe two physical and two logical security measures
>> that Adam can employ to protect the data.
>>
>> Physical security measures
>>
>> Suggested answer:
>>
>> • A voice recognition device can be used to authorise users to access
>> rooms, equipment or information.
>>
>> Physical?  Electronic, surely!  And not a very sensible option, if you
>> ask me.
>>
>> • Multiple copies of backup should be made and kept off site. One copy
>> is not sufficient if theft or damage occurs in the house.
>>
>> Backups are not security; certainly not physical security!
>>
>> • Video surveillance would also be a useful security measure. Video
>> cameras capture the activity in the house.
>>
>> These all seem inappropriate for such a small setup.  What about locked
>> doors, barred windows?
>>
>> c. Identify one software item and one hardware item that will be
>> required in setting up the network and explain their role or usefulness
>> in the network.
>>
>> Suggested answer: Software: the most essential software for a network is
>> the network operating system. This software controls the traffic on the
>> network and defines how the devices connected in the network will
>> communicate with each other.
>>
>> Only if they need a server – which I’d say they would not.
>>
>> d. Explain how the Privacy Amendment (Private Sector) Act 2000 impacts
>> upon Adam’s security and storage measures.
>>
>> Again, this amendment is not used in ITA.
>>
>>
>> Question 12
>> "The organisation Gems & Jewels would like to develop a database to keep
>> track of all the different items of jewellery they have in stock. The
>> management have written down the tasks which are required to construct
>> the database and have added the time each is expected to take and which
>> tasks cannot begin without others being finished."
>>
>> The answer is a bit of a mess.
>> Tasks B and D are 14 weeks in the chart, not 6 as in the data.
>> This pushes tasks E and I way too far late.
>> It should look like this:  (see attachment)
>>
>> b. Which task cannot begin without others being finished?
>> Suggested answer: J
>>
>> An unfair question.  I assume the “S” on the end of “others” demands a
>> task that has more than one predecessor.  It should say so.  To be fair
>> it should ask which task has to wait for more than one other task to
>> finish before it can begin.  I bet 99% of kids would be confused and say
>> that there are 6 viable tasks.
>>
>> ---
>>
>> Let me see, that makes about 18c worth.
>>
>> Any other opinions out there?
>>
>> -- 
>> Mark Kelly
>> Manager - Information Systems
>> McKinnon Secondary College
>> McKinnon Rd McKinnon 3204, Victoria, Australia
>> Direct line / Voicemail: 8520 9085
>> School Phone +613 8520 9000
>> School Fax +613 95789253
>> kel AT mckinnonsc.vic.edu.au
>>
>> Webmaster - http://www.mckinnonsc.vic.edu.au
>> IT Lecture notes: http://vceit.com
>> Moderator: IT Applications Mailing List
>>
>> You'll know when we are officially a civilised race: our schools have
>> all the money they need and the Air Force has to run a chook raffle to
>> buy a new bomber.
>> _______________________________________________
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>> Teachers Association Inc
> 
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> 
> 

-- 
Mark Kelly
Manager - Information Systems
McKinnon Secondary College
McKinnon Rd, McKinnon 3204, Victoria, Australia
Direct line / Voicemail: 8520 9085
School Phone +613 8520 9000, Fax +613 95789253
kel AT mckinnonsc.vic.edu.au

Webmaster - http://www.mckinnonsc.vic.edu.au
IT Lecture notes: http://vceit.com
Moderator: IT Applications Mailing List

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