Software Engineering Data Dictionaries (2 Viewers)

mickeyd_357

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Hi I was just wondering if anyone could explain to me how to calculate the number of bytes needed for storage for data dictionaries. I saw a question from the 2020 SDD hsc exam (Q25). I am confused about how to calculate it for string, integers and other data types. Why is an integer 4 bytes? How many bytes is a letter?
Any help would be greatly appreciated
 

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As a rule of thumb, one character is one byte. The data dictionary on page 8 might give you some information as well.
They also specify that booleans are 1 bit (which doesn't really make sense... i can't remember exactly why but my teacher was quite annoyed 2 weeks ago when he saw)
and that date/time is 4 bytes
 

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Socialism

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actually, i've got no idea because the internet is saying different things than the course specs
check with your teacher
i would assume that the course specs are what they base the correct answers off, but it might be rough if you get a marker who isn't aware that the course specs say these apparently weird things
 

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