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- State the name of an identifier for:
- A string constant (or variable used as a constant) [1]
- A subroutine with two parameters [1]
- A subroutine that returns a tuple (more than one value) [1]
- A Boolean variable [1]
- A parameter that is a list [1]
- An integer list [1]
- A built-in function called from within the GetMenuOption subroutine [1]
- The identifier for a user-defined function called from the GetNextLetter subroutine [1]
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- State the purpose of each of the following lines in the GetTransmission subroutine: [4]
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- Describe the purpose of the While loop within the SendReceiveMessages subroutine. [2]
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- Describe the nature and purpose of the Dash data structure in SendReceiveMessages. [3]
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- Look at the subroutine StripLeadingSpaces. Describe the purpose and use of the variable FirstSignal. [2]
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- Describe each of the following lines of code, taken from the StripTrailingSpaces subroutine: [6]
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- Describe the function of the following line from the SendMorseCode subroutine: [3]
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- Describe the purpose of the except: block in the GetTransmission subroutine.
State one situation in which the code in the except: block would be executed. [2]
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- The skeleton program begins with a number of constants (or variables used as constants by convention).
State two benefits of the program being written in this way. [2]
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- The StripLeadingSpaces subroutine uses the [1:] operation.
Describe the purpose of the [1:] operation and explain how it is used in StripLeadingSpaces. [3]
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- Describe each of the circumstances that would lead to the subroutine ReportError being called. [5]
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- Describe fully the operation of the Decode subroutine if the value of CodedLetter is -..- [10]
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