HSC Stuff > HSC Information Processes and Technology
IPT Question Thread + Useful Info
Hua Fei:
--- Quote from: BPunjabi on October 08, 2016, 06:10:50 pm ---Question:With out looking at answers, answer a) and c) as b) is easy.
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Btw where is this question from? And do you have answers?
aimbotted:
--- Quote from: Hua Fei on October 08, 2016, 08:39:19 pm ---Btw where is this question from? And do you have answers?
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ive seen them before, they're from a hsc past paper i think one of the 2011-2015 ones
BPunjabi:
--- Quote from: Hua Fei on October 08, 2016, 08:03:51 pm ---Binary code? Do you mean you don't understand how to turn a decimal to a binary?
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I dont get changing the value at the end... look at every multiple choice Question, its usually the last.
BPunjabi:
--- Quote from: Hua Fei on October 08, 2016, 08:00:59 pm ---No worries! Glad it helped! :)
Also, the answers to your questions:
a) Cyclic redundancy check (CRC) is a method used to detect errors in transmission – a method 99.99% more effective than check sum. Hence, in this information system, it could be used when the details of the customer when they are applying for a loyalty card are transmitted to the department store.
Note: I don’t think I wrote an adequate amount…and if I did this correctly….
c) In this information system:
- Internet would be used to access the online department store for shopping and applying for a loyalty card. It would also be used when the customers receive advertising emails from the business partners of the online department store.
- Intranet would be used when the store shares information with its employees.
- Extranet would be used for when the store shares information with its business partners.
Note: Not too sure about this question either…… :’(
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Nice Job with c) but wouldnt you say with a) the process behind CRC?
Hua Fei:
--- Quote from: BPunjabi on October 09, 2016, 11:27:24 am ---I dont get changing the value at the end... look at every multiple choice Question, its usually the last.
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How to convert decimal to binary (I think that's your question?):
For example, how is 72 represented as a binary?
Answer: 1001000 (working out in the picture attached)
Hope this answered your question!
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