A-LevelComputer ScienceProgramming9618/23 · May/June 2023 · Q26 Marks

A program stores a date of birth for a student using a variable, MyDOB, of type DATE.

(a)MyDOB has been assigned a valid value corresponding to Kevin's date of birth. Complete the pseudocode statement to test whether Kevin was born on a Thursday. IF THEN[2]
(b)(i)A function CheckDate() will take three integer parameters representing a day, month and year of a given date. The function will validate the date of birth for a student that the parameters passed to it represent. For a date to be valid, a student must be at least 18 in year 2020. Two of the parameter values can be checked without reference to the third parameter. Describe these two checks. Check 1 Check 2[2]
(b)(ii)Several values of the parameter representing the day can only be checked completely by referring to the value of one other parameter. Describe this check.[2]

Mark scheme

Marking points from the official mark scheme (May/June 2023). The mark or mark type is shown in brackets.

[2] One mark for each underlined part
[2] IF DAYINDEX(MYDOB) = 5 THEN
[2] MP1 Value for month is between 1 and 12 (inclusive)
[2] MP2 Value of year is <= 2002
[2] MP1 Reference to month and day
[2] MP2 Clear description for a check that the day number matches with a relevant month
[2] (Either day matches with month // month matches with day)

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