OCR GCSE Computer Science Computational thinking, algorithms and programming (02), June 2025: Question 6

Question Answer Mark Guidance

6 (a) (i) • 3rd box ticked 1

6 (a) (ii) • Checks if passA and passB are equal… 3 Example code

• …Correct output if True if passA == passB:

print("passwords match")

• …Correct output if False

else

print("passwords do not match")

Design so answer can be flowchart, etc. If

end if

flowchart, decision (diamond) box needed for BP1,

True / False labels essential for BP2 and 3. Output

Allow alternative messages.

(parallelogram) box needed for BP2 and 3.

Ignore superfluous code (including inputs or

overwriting variables) as long as it does not affect

outcome.

Could be done as separate if statements. Do not

allow elseif/elif etc by itself for BP1 unless

complete logical comparison (e.g. elif passA

!= passB). FT to BP2 and 3.

BP2 and 3 require a sensible attempt at

comparing variables in BP1 to be given.

passA and passB must be correct with no

spaces. Ignore case. Penalise spaces only if clear

and obvious.

6 (b) (i) One mark per refinement 4 Allow descriptions of change. Allow quote marks

around field and table names. Allow == for BP4.

• SELECT ActID , Stage

• FROM TblMusic Spellings / spaces in field/table names must be

• WHERE accurate. Penalise spaces only if clear and

• Day = "Saturday" obvious. Ignore case.

Max 3 if final SQL is invalid / in wrong order / has

extra superfluous code.

For same error repeated (e.g. : included ), penalise

once then FT.

6 (b) (ii) • Any example of one complete record / row 1 Accept any sensible data for new record as long as

from the table given 4 distinct items of data given.

• Any example of one complete record / row

that could potentially be added to the table Allow field names with data.

Ignore order of data. Ignore case / spelling. Ignore

data types

Do not allow definition of a record.

6 (b) (iii) • Stage: String 2 Accept equivalent data types, including those that

• SetLength: Real // Float may be common in databases such as :

• String = text / varchar / char etc

• Real / float = decimal / single / double /

numeric etc

6 (c) (i) • Function definition for 4 Section B so must be high level code. Do not accept

calculatePrice() x for multiplication. Do not accept spaces in function,

• … with parameter that is not overwritten variable or parameter names if clearly obvious.

• Calculate price based on multiplying

parameter (if present) by 60 … Example code

function calculatePrice(num)

• …always return calculated price

price = num * 60

return price

endfunction

All code must be within function definition (if present).

BP3 – if no parameter present, allow multiplying

by sensible value (e.g. input value). FT

overwriting parameter.

BP4 must be return. Do not credit output/print. Value

returned can be with or without £ sign and other text.

FT for BP4 if sensible attempt made at calculation.

Accept multiple parameters passed in. Ignore

superfluous code

Accept returning by assigning to function name (e.g.

calculatePrice = price ), some languages

such as VB do this.

6 (c) (ii) • CalculatePrice(3) called… 25 2 Example code

• … return value assigned to totalPrice totalPrice = calculatePrice(3)

Do not accept == for assignment

Allow FT to BP2 only if sensible attempt at BP1

(e.g. missing/wrong parameter)

Allow multiple values passed in as long as 3 is one

of the values.

Do not accept definitions of a function – must be

calling the existing function.

Penalise spaces in variable / function name only if

clearly obvious.

Ignore superfluous code. Ignore case.

6 (d) (i) • Count initially set to 0 4 Example

• count increases to 10, 24, 30 and no other

changes

• x goes from 0, 1, 2 (, 3) and no other

changes.

• 30 output and no other output.

Ignore line numbers - not required. Mark order of

values.

Values can be repeated in count and x columns,

look at changes.

FT for BP4 if incorrect answer calculated but

output. Allow last value of count calculated to be

output for the mark.

Give BOD for “-“, “nothing”, etc as extra in output

column. Do not accept print(30) or equivalent

for output.

Question Answer 27 Mark Guidance

6 (d) (ii) • Line 02 2 Must use x as counter variable.

• For x = 0 to 4

Accept rewrites in other languages

BOD 0 to 5 / range(5) etc

Accept other changes that implement the change

successfully e.g. using length of actNumbers

6 (d) (iii) • print("The total act count is " 1 Allow other concatenation operators e.g. & (VB),

+ count) dot (PHP, Rust), double dot (Lua), etc. Allow

comma. Must have some form of separator.

Ignore spacing. Ignore case. Ignore casting.

Allow other commands that are equivalent to

print (e.g. echo, output, etc)

Allow multiple print statements. Allow multiple lines

of code that achieve the outcome.

Allow string interpolation or language specific

examples that will achieve this (e.g. f strings in

Python, use of $ before variables inside strings in

PHP). Both of the following and examples like this

are OK :

• print("The total act count is {count}")

• print("The total act count is $count")

6 (e) • input and store/use number of tickets 6 Allow any suitable confirmation message for BP3

needed (booked / not enough) but must be right way around.

• Check if enough tickets left…

BP2 must allow tickets to be booked when exact

• …sensible confirmation message output

number remain (e.g. 5 tickets needed and 5 remaining).

correctly for both booked and no tickets Check comparison operator does not exclude this.

available

• …tickets variable updated correctly BP3 and 4 dependent on BP2. If BP2 incorrect / not

• Attempt at iteration… given but reasonable attempt (e.g. checking if tickets

• …repeat all above that has been bigger than 0) allow FT for BP3/4.

attempted while tickets > 0 // while tickets

!= 0 // until tickets <=0 // until tickets = 0 Any attempt at loop means giving BP5

BP6 must not repeatedly reset tickets to 500. BP6 must

include repeated input (if present).

Ignore superfluous code.

Example code

tickets = 500

while tickets > 0

num = input("enter num tickets")

if tickets >= num then

print("tickets booked")

tickets = tickets - num

else

print("not enough tickets")

endif

endwhile