Makro
Porcupine
Using this for quick questions, thought I'd keep it on one page. Ask a question, with a relevant number (after the last one) and the answer referring to the question asked. I'll keep this updated I suppose.
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Symmetric encryption
1. Uses the same key for both encryption/decryption. Is this a public or private key?
A: symmetric encryption is private key encryption, because you have to keep the keys private... thats how i remember it. public key is when you can distribute the encryption key publicly because you don't use it for the decryption process
Check digit
2. What is a check digit? How's it used?
A:
Data transmission
3. Example of Parallel transmission? When is it used?
A:
Conversion:
4. BHP Billiton decides to replace their existing computer system with a new one. They have offices in Melbourne, London, Perth, Johannesburg, Santiago, Singapore, Shanghai, Houston and The Hague. They ask you to suggest a conversion method for them to use. Justify your response..
A: pilot conversion. you could trial the new system in one of the offices over a period of time. depending on the result of the evaluation you could then deploy it in the remaining offices.
it should be noted that you could argue a case for direct, parallel or phased.
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Symmetric encryption
1. Uses the same key for both encryption/decryption. Is this a public or private key?
A: symmetric encryption is private key encryption, because you have to keep the keys private... thats how i remember it. public key is when you can distribute the encryption key publicly because you don't use it for the decryption process
Check digit
2. What is a check digit? How's it used?
A:
Data transmission
3. Example of Parallel transmission? When is it used?
A:
Conversion:
4. BHP Billiton decides to replace their existing computer system with a new one. They have offices in Melbourne, London, Perth, Johannesburg, Santiago, Singapore, Shanghai, Houston and The Hague. They ask you to suggest a conversion method for them to use. Justify your response..
A: pilot conversion. you could trial the new system in one of the offices over a period of time. depending on the result of the evaluation you could then deploy it in the remaining offices.
it should be noted that you could argue a case for direct, parallel or phased.
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