EDEXCEL GCSE 2018 Paper 2 exam paper can be downloaded here



EDEXCEL GCSE 2018 Paper 2 mark scheme can be downloaded here
1A Answer
Any two from:
  • Date of birth 
  • Employee number
  • Permitted areas 
  • Department
  • Salary
  • Address
  • Job role
  • Badge number
  • National Insurance number 
  • Location/depot
  • Uniform information
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1B answer
10 + (((currentYear - startYear) -2)  x 0.5)

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1C answer


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2a answer
In this exact order:
  1. South depot
  2. North Depot
  3. ​Unknown code

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2b answer
  • Type check(1) (data)
  • Length check(1) (data)
  • Presence check(1) (code is blank)
  • Lookup check(1) (Explanation of data not in pre-existing lists)

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3ai answer


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3aii answer
Boolean

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3aiii answer
Real/Float
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3B answer
 

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3c answer
199

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4a answer
Logical error

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4b answer


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5a answer


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5b answer
A function returns a value

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5c answer
Volume


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5d answer
  • Reduced coding time/code is quicker to write/code can be reused
  • Reduced bugging time/library is bug free/reduced testing time
  • ​Library may have more complex functionality than programmer has understanding of

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6ai answer
Random order (1) means that all items will have to be looked at to find all occurrences
Because the data is NOT sorted (1), the algorithm has to look at every item in the list


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6aii answer
The loop (1) means that all records will have to be looked at even if there are no numbers > 300 in the list (1)
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6aiii answer
Any from:
  • Sort the list
  • Direction of search (ascending, descending)
  • Test for stopping for found item < 300​

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6b answer


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6c answer
  • Drivers may feel it is an invasion of privacy because they could be tracked during work hours and when they are not delivering items
  • Drivers may not feet it is acceptable to be ranked/compensated based on tracking data because unknown things like roadworks will affect the tracking data
  • Drivers may be tracked by customers who my be annoyed by perceived delays
  • Drivers may worry that their personal data (home address) may not be secure
  • Drivers may want to use the vans for their own purposes outside work hour and may not want this ot be tracked

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7a answer


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7bi answer 
To uniquely identify an entity  / a record in a table

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7bii answer 
MachineNumber

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7biii answer


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7biv answer


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8 answer


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