C++ Programming Exam

Exam Instructions

• The exam is 2 hours long
• The paper has 6 pages and 2 sections
• Section A is multiple-choice
• Section B is programming questions
• Answer all questions
• Total marks: 60

Section A - Multiple Choice Questions (15 marks)

• Question 1: Structured programming technique graphically representing program steps is a flowchart.
• Question 2: Correct C++ single-line comment syntax is //Comment.
• Question 3: A function prototype can be omitted when the function is defined before it's called.
• Question 4: Difference reduction is not a common problem-solving method in computer science.
• Question 5: Correct declaration of a string array "students" initialized with values is string students[4] = {"Richard", "Elizabeth", "Jordan", "Jose"};
• Question 6: The correct code to iterate through an integer array arr with 15 elements and display each element is int arr[15]; for (int i = 0; i < 15; i++) { cout << arr[i] << " "; }

Section B - Programming Questions (45 marks)

• Question 1:
  • Member functions for reading and writing data to/from a file at a specific position
  • Short example code snippets for each are needed
• Question 1 (continued): Data from a file named students.txt (first name, last name, and grade) is used to calculate the average grade and find the student with the highest grade.
• Question 2:
  • Three unique features of a constructor function
  • Explanation of private, public, and protected access modifiers.
  • Function declarations for an overloaded function getSum() that takes 2,3 or 4 integers as parameters. (Don't write the entire program, only declarations).
• Question 3:
  • C++ code to create a Person struct, assign values to its members (citizenship and age), and display them.
  • Class declaration and definition code for an Aeroplane class (based on the UML diagram).
  • Instantiate two objects: one with the default constructor and the other with the parameterized constructor.
  • Display the Aeroplane details (using displayAeroplane function)