HSC IPT Questions Thread

[Joseph41]

HSC IPT Q&A THREAD

What is this thread for?
If you have general questions about the HSC Information Processes and Technology course or how to improve in certain areas, this is the place to ask! 👌


Who can/will answer questions?
Everyone is welcome to contribute; even if you're unsure of yourself, providing different perspectives is incredibly valuable.

Please don't be dissuaded by the fact that you haven't finished Year 12, or didn't score as highly as others, or your advice contradicts something else you've seen on this thread, or whatever; none of this disqualifies you from helping others. And if you're worried you do have some sort of misconception, put it out there and someone else can clarify and modify your understanding! 

There'll be a whole bunch of other high-scoring students with their own wealths of wisdom to share with you. So you may even get multiple answers from different people offering their insights - very cool.


To ask a question or make a post, you will first need an ATAR Notes account. You probably already have one, but if you don't, it takes about four seconds to sign up - and completely free!

[Sashsan1]

Hey everyone,
I was just wondering if anyone has a nice, concise summary of all the calculation-based questions that could be asked in the HSC exam
And also, I still don't understand how parity bit checking works so if someone could explain it, that would be wonderful!
Good luck to everyone for Wednesday!!

[Divayth Fyr]

Hey everyone,
I was just wondering if anyone has a nice, concise summary of all the calculation-based questions that could be asked in the HSC exam
And also, I still don't understand how parity bit checking works so if someone could explain it, that would be wonderful!
Good luck to everyone for Wednesday!!

Get your cameras everybody. Somebody actually posted in this thread... Alright, I'll be serious.

This thread has a list of all the multimedia cauclations: http://community.boredofstudies.org/29/information-processes-technology/154889/multimedia-formulas-thread.html

Keep in mind that you are not allowed to bring a calculator into the exam, so they can't make the calculations too difficult.

As for parity checking: imagine you want to send the following to another computer:



When the computers are handshaking, they decide what type of parity to use. If it is even parity, then you want there to be an even number of 1's in the data. If it is odd, then you want there to be an odd number of 1's. They achieve this by adding an extra bit (called the parity bit) at the end of the message. Let's say that they are using even parity to send the above message. There are five 1's in the message, so the parity bit added will be a 1 in order to make an even number of 1's:



If they decided on odd parity, then they would add a zero in order to keep the odd number of 1's:



Let's say that the transmission was corrupted, and the second bit was changed from a zero to one (while using the even parity one). It would look like this:



There are an odd number of 1's there, so the receiver knows that an error has occurred, as there is meant to be an even number of 1's. However, what if two bits were corrupted? For example, what if the second and third bits were changed from zeros to ones:



This is an even number of 1's, so the receiver can't tell that an error has occurred. Thus, there is about a 50% failure rate for parity bits. So, while it is better than nothing, it still isn't very good.

I hope this helps. Good luck for the exam.

[Sashsan1]

Thank you so so much and yes it really helped heaps!!
Haha yeah, wasn't too sure if anyone would even post something on this thread before the exam!

[avneet420xx]

personally i got tripped over the multimedia question of cel and path based animation as i forgot to revise that content

[Coolmate]

Hey Everyone,

I am in Year 11 and am going to do my IPT prelim exams soon. I was wondering whether anyone has any good tips and what the most important things I should study that I can use for the exam, to achieve a high mark?

Also, does anyone have any past prelim papers for IPT?... (The new syllabus is making it hard to find them).

Thanks in advance,
Coolmate

[Divayth Fyr]

Hey Everyone,

I am in Year 11 and am going to do my IPT prelim exams soon. I was wondering whether anyone has any good tips and what the most important things I should study that I can use for the exam, to achieve a high mark?

Also, does anyone have any past prelim papers for IPT?... (The new syllabus is making it hard to find them).

Thanks in advance,
Coolmate

The best thing you can do is to look at the syllabus (pages 14-26) and go through each dot point here. Doing this, you can see everything that can be in the exam and more importantly, what you remember and have forgotten. This will let you know what you should focus on. Personally, I like to write down a summary of this on a couple pieces of paper and use that to study for the exam, although you should use whatever study method(s) works best for you.

It's hard to say what the "most important" things for any exam are because the exam could use anything from the Year 11 Syllabus. That said, I believe that the information processes, social and ethical issues, and any diagrammatic tools you've learnt (eg: Information Systems In Context) could be considered the "most important". I only say this because I've noticed a lot of overlap with these topics and the rest of the course. However, do take that list with a grain of salt. Don't focus solely on that list and neglect the other parts of the course.

The website "thsconline" has three past preliminary exams on it, although I can't vouch for their quality. You can find it through google.

I hope this helps. Good luck with your exam.

[Coolmate]

The best thing you can do is to look at the syllabus (pages 14-26) and go through each dot point here. Doing this, you can see everything that can be in the exam and more importantly, what you remember and have forgotten. This will let you know what you should focus on. Personally, I like to write down a summary of this on a couple pieces of paper and use that to study for the exam, although you should use whatever study method(s) works best for you.

It's hard to say what the "most important" things for any exam are because the exam could use anything from the Year 11 Syllabus. That said, I believe that the information processes, social and ethical issues, and any diagrammatic tools you've learnt (eg: Information Systems In Context) could be considered the "most important". I only say this because I've noticed a lot of overlap with these topics and the rest of the course. However, do take that list with a grain of salt. Don't focus solely on that list and neglect the other parts of the course.

The website "thsconline" has three past preliminary exams on it, although I can't vouch for their quality. You can find it through google.

I hope this helps. Good luck with your exam.

Thanks Divayth Fyr for your response, I will check out that website and also go through the information above 

[Grace0702]

Can someone explain the difference between bridges and gateways, I keep getting them confused

Thanks

[Coolmate]

Can someone explain the difference between bridges and gateways, I keep getting them confused

Thanks

Hey Grace0702!

No problem, so basically:

A Bridge = A type of computer network device providing interconnection with other bridge networks that use the same protocol (Like a signal extender?)

Purpose: To provide interconnection between a set of same protocol bridge networks

• Can also be referred as Layer 2 switches
  
  A Network Bridge is seen most commonly in LAN's (Local Area Networks) as the information can clog large networks with reference to their capability to distribute data to any (or all) nodes if the MAC address of the node is unclear.
  
  Databases can be utilised by bridges to make sure they either know how to transmit/ pass/ discard the data frame.
  

A Gateway = Is a hardware device that acts as a "gate" between two networks

2 Main Types (You may not have to know this for the HSC):

Unidirectional Gateways = The flow of alerts/ signals go in one direction
Bidirectional Gateways = The flow of alerts/ signals go in multiple directions

Purpose: A Gateway serves as an access point or IP router that a network computers are able to use to send information to a computer in another network or the internet.

I hope this helps!

Coolmate

P.S. I always find this website (https://www.techopedia.com/) to be very useful when it comes to IPT and other technology related things.

VIDEOS!:
(https://www.youtube.com/watch?v=ai5bFPVToMU)
Awesome Explanation by Eddie Woo --> (https://www.youtube.com/watch?v=3fljzyUCtew)

Also, I am in Year 11 so I have not done HSC IPT yet, but this is what I have researched and have found

[Grace0702]

Hi all,

Can someone please explain the client-server architecture model

Thanks

[Coolmate]

Hi Grace0702!

The client-server architecture model is essentially a distributed application structure that divides tasks up into smaller more manageable chunks between providers and clients (servers). An image below diagrammatically represents this:

Examples of computer applications that use the client–server architecture model are Network Printing, the internet and Emails

The Aim: It is a computer network where clients request and recieve service from a centralised server. Client Computers aim to provide an interface to allow a computer user to request services of the server and to display the results the server then returns. See the picture below:



 :)Brittanica further explains this concept: https://www.britannica.com/technology/client-server-architecture

I hope this helps!

Coolmate

[Coolmate]

Hi Everyone!

Could someone please explain/ show me how to construct a Decision Table, as I am confused with how they are created.

Thanks in advance!
Coolmate