How To Answer Programming Questions Ocr

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Exam code:J277

How do I answer an OCR GCSE (9-1) Computer Science programming question?

Programming questions can appear in both papers
Paper 1 may include questions that test understanding and interpretation of algorithms and computational thinking principles
Paper 2 is the dedicated component for assessing the ability to actively design, write, test, and refine programs
- Section A questions can be answered using either pseudocode, flowcharts, bullet points, OCR Exam Reference Language or a high-level programming language
- Section B questions must be answered using either OCR Exam Reference Language or a high-level programming language
To attempt a programming question that requires the writing of a new program, you should always ask yourself the following five key questions:
- What are the inputs?
- What are the outputs?
- What processes take place?
- What constructs will I need to use?
- Do I need to use subprograms?

Question
Charlie is developing an adding game. The rules of the game are: the player is asked 3 addition questions each question asks the player to add together two random whole numbers between 1 and 10 inclusive if the player gets the correct answer, 1 is added to their score at the end of the game their score is displayed. Write an algorithm to play this game. [6 marks]
What are the inputs? What are the outputs? What processes take place?
the player is asked 3 addition questions each question asks the player to add together two random whole numbers between 1 and 10 inclusive if the player gets the correct answer, 1 is added to their score at the end of the game their score is displayed.
What constructs will I need to use?
Iteration – a `FOR` loop can be used as the game is a fixed length (3 questions) Selection – an `IF` statement can be used to check if the answer is correct Declare a `score` variable to keep track of the score
Do I need to use subprograms?
This program can be written without the need to use a subprogram (function or procedure)
Answer
Pseudocode
score = 0 for count = 1 to 3 num1 = random(1, 10) num2 = random(1, 10) ans = input(“What is” +num1 + ” + ” + num2 + “?”) if ans = num1 + num2 then score = score + 1 end if next count print(“You scored ” + score)

Question
A program written in a high-level language is used to access data from a database. This program has a procedure, `SaveLogs()`, that stores the data to an external text file. The procedure `SaveLogs()`: takes the string of data to be stored to the text file as a parameter takes the filename of the text file as a parameter stores the string of data to the text file. Write the procedure `SaveLogs()` You must use either: OCR Exam Reference Language, or A high-level programming language that you have studied [6 marks]
What are the inputs? What are the outputs? What processes take place?
takes the string of data to be stored to the text file as a parameter takes the filename of the text file as a parameter stores the string of data to the text file. Write the procedure `SaveLogs()`
What constructs will I need to use?
This question is testing knowledge of how to write procedures Selection must be used to ensure the correct order of operations No selection or iteration is required
Do I need to use subprograms?
This question requires the answer written as a procedure which includes 2 x parameters A procedure does not return a value
Answer
Pseudocode
procedure SaveLogs(data, filename) logFile = open(filename) logFile.writeLine(data) logFile.close() endprocedure