MC Proposed Solutions

[MJRomeo81]

After looking at the paper, I have some proposed MC solutions (although certainly do not take them as 100% accurate). Let's get some discussion happening.

1:    B
2:    A
3:    A
4:    D
5:    B
6:    B
7:    D
8:    C
9:    B
10:  D

11:  D
12:  A
13:  A
14:  C
15:  C
16:  A
17:  A
18:  B
19:  A
20:  C

EDIT: Q19 is A. See below.

[Lasercookie]

I don't have a copy of the paper yet (waiting for it to be uploaded on VCEIT, so a few days), so I don't really remember all the questions.

Which one was the OSI Model question, the one about the physical layer? I know I was tossing up between A and B for that question. I don't remember the exact wording, A mentioned route, B was something like 'establish a connection with a communications medium. I ended up going with B, since routing is done on Layer 3 (though I'm not too sure of the wording of A, it might refer to what goes on in the physical layer).   

Also thanks for doing up these solutions.

[MJRomeo81]

http://vceit.com/postmortems/2012sd/SD2012exam.htm

MK has scanned the paper but hasn't provided solutions yet.

Question 6
One of the functions of the physical layer of the Open Systems Interconnections (OSI) model is to
A.      route data to a remote computer.
B.      establish a connection to a communications medium.
C.      establish a connection to a remote application program.
D.      translate data into a form that is acceptable to the application layer.

I have B for this question. 100% sure its right.

[Uberjew]

http://vceit.com/postmortems/2012sd/SD2012exam.htm

MK has scanned the paper but hasn't provided solutions yet.

Question 6
One of the functions of the physical layer of the Open Systems Interconnections (OSI) model is to
A.      route data to a remote computer.
B.      establish a connection to a communications medium.
C.      establish a connection to a remote application program.
D.      translate data into a form that is acceptable to the application layer.

I have B for this question. 100% sure its right.

Yes I was undecided between A and B but route seemed more network and the connections medium sounds physical layer.

[Lasercookie]

Awesome. So it looks like we all agree that B was the answer for that question.

I'd disagree with what you got for 19

Question 19
When planning software projects, it is necessary to identify, schedule and then monitor
A.      resources, people, time and tasks.
B.      resources, people and documentation.
C.      tasks, time, people and documentation.
D.      tasks, resources, documentation and systems.

I went with A.

I believe this is another one of those regurgitate from the study design multiple choice questions that they like to do (I don't like how they do this, do they run out of ideas and just decide to copy and paste?). In Unit 3 Outcome 1 there is this dot point "key tasks associated with planning software projects, including identifying, scheduling and monitoring tasks, resources, people and time", which is pretty much the exact wording of the question. For that reason, I think that's what VCAA is looking for.

I think you can also eliminate B, C and D on the basis of 'documentation' being there. I can't really think of how documentation would be relevant to planning the software project. Identify, schedule and monitor documentation, in order to plan - that is, to figure out how to approach - the software project? That doesn't seem to make sense. Documentation itself is one of the tasks to be completed as part of the software project.


Off-topic: Though does study design dot point itself make sense? Why would need to monitor how things are going if all you're trying to do is "plan" the software project?

From the latter half of that study design dot point, it's clear that it's referring to project management skills. I really don't think VCAA should be using the wording "planning software projects" for that dot point, because that tends to be a bit confusing because it blurs a bit with the wording they use in the analysis and design stages of the PSM.

I think better ways of wording the study design dot point (and hence this question too) would be "key tasks associated with planning and monitoring software projects, including identifying and scheduling tasks, resources, people and time" or "key tasks associated with managing software projects, including identifying, scheduling and monitoring tasks, resources, people and time"

[Uberjew]

19 is definitely A, I spent most of my revision (like 30min) remember Identifying, Scheduling and Monitor resources, tasks, people & time.

[MJRomeo81]

Yeah 19 was the only question I had absolutely no idea on (I can't really remember the specifics of it in SD).

Glad you guys nailed it

[Uberjew]

My answers (used my calc to record 1234 for ABCD, may have written wrong on my calc but let's assume I didn't):

1.B
2.A
3.A
4.D
5.B
6.B
7.D
8.C
9.B
10.D
11.D
12.A
13.D
14.C
15.C
16.C
17.A
18.B
19.A
20.C

[Uberjew]

Shit I think I am totally wrong for 16, but is a record a data structure?  I mean it would be a record but I wrote sequential file because it said only 1 person and thought record isn't a data structure...

[MJRomeo81]

I have 13 as A.

Question 13
One of the purposes of an SRS is to provide
A.      the breakdown of a problem into its component parts.
B.      the user with instructions for operating the new software.
C.      information to other programmers about how a program works.
D.      criteria for evaluating whether or not the solution requirements have been met.

VCAA study design glossary on SRS:   "...SRS fulfils the purposes of breaking down the problem into component parts..."
http://www.vceit.com/studydesign/glossary2011.htm


I have 16 as A.

Question 16
The name, date of birth, membership number, address, suburb, postcode and phone number of one person is to be stored in memory.
Which one of the following would be the best data structure?
A.      record
B.      random file
C.      sequential file
D.      one-dimensional array

We wouldn't use a file for one person. Cannot use an array because of multiple data types. Hence the answer is record, and it is a data structure.

[Uberjew]

Yeah for 13 I wasn't really sure, I guess it was a VCAA definition.  I didn't like the evaluating bit but an SRS makes you know what the  solution requirements are and you can use it to stay on track.

On 16, well I just had no idea record was an actual file structure.  I then thought between random and sequential where for 1 file it wouldn't matter so I did sequential.

Rest (most of it) feels good, they were my unsure questions.

[billyjackson768]

I agree with all the current solutions in the original post. Besides one. Question 15... I hated this one, I ruled out A and B straight away. But C and D... Everything mentioned in them is highly important, it was a struggle to toss up between processor speed and operating system, but given Xian was making the game for two different systems I thought operating system was pretty important. Yes they said what are the most important characteristics of mobile phones that Xian should consider, but I just took that as a given her circumstances question. A bit of an ambiguous question I say.

[Lasercookie]

Yeah I was tossing up between C and D too. I thought over it a fair bit and ended up going with C.

My reasoning for ruling out D was, regardless of what operating system you have, the game wouldn't run at all if the hardware didn't have a processor powerful enough for it. Xian could work around operating systems by porting the code over, but if he made the game too graphically intensive etc. it wouldn't really work out that well.

[MJRomeo81]

Q15 is annoying. Obviously weight can be ruled out (so the answer isn't A or B). I figured that the processor speed is "more important" than the OS.

What is an OS? It acts as an application interface to the hardware. To a game designer at the most fundamental level, you would first consider what the hardware is capable of prior to how the software (OS) controls the hardware.

[billyjackson768]

Yeah I wasn't very confidant on that one. I guess it does make more sense to focus on the primary hardware side of things.  I guess a bit of my reasoning though was that low processing power unlike not having enough memory to actually load the game may still allow it to run, just at a reduced frame rate. Then the operating system I guess I just saw and a pretty big barrier, but I guess if you put in the effort you can usually work past that, so it's probably just more of a hindrance rather than something that's going to get in the way. I guess it is also fairly important the game runs smoothly so a weaker processor does constrain her from that. But who cares about some chopping and occasionally freezing gameplay? 

One wrong on multiple choice isn't so bad. I'm thinking I'll be losing marks on the writing of that pseudo code where I missed a damn "or equal to" from my greater than sign as well as the testing values for the post codes later on where I picked one value that may not have been the best. Then god knows what the examiners think of all my explanations and justification as well as my page long strategy for the last question. At least I don't think I will lose marks anywhere for not going indepth enough.