Question 1: Write a simple function in pseudocode that takes two numbers as input and returns their sum.

Answer: Function addNumbers(num1, num2) { return num1 + num2; }

Question 2: Describe what a function is in programming and give one example of when you might use one.

Answer: A function is a block of code that performs a specific task and can be reused. For example, a function to calculate the area of a rectangle.

Question 3: Complete the truth table for an AND gate with inputs A and B and output C.

Answer: A | B | C ---|---|--- 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

Question 4: Complete the truth table for an OR gate with inputs A and B and output C.

Answer: A | B | C ---|---|--- 0 | 0 | 0 0 | 1 | 1 1 | 0 | 1 1 | 1 | 1

Question 5: Draw a logic circuit that shows how an AND gate and an OR gate can be connected to produce a specific output. Label each gate clearly.

Answer: A correct sketch would show two inputs feeding into an AND gate and an OR gate, with their outputs connected to a final output, demonstrating the combination of logic gates.

Question 6: Explain the difference between a function and a procedure in programming.

Answer: A function returns a value after performing a task, while a procedure performs tasks but does not return a value.

Question 7: Describe a real-life example where you might use a function in programming.

Answer: Calculating the total price of items in a shopping cart using a function that sums item costs.

Question 8: Draw a truth table for a NOT gate with input A and output B. Label the inputs and outputs clearly.

Answer: A | B ---|--- 0 | 1 1 | 0

Question 9: Identify the logic gate described: It outputs true only when exactly one of its two inputs is true.

Answer: This is an XOR gate.

Question 10: Sketch a simple function in pseudocode that checks if a number is even. Write the function's name and its logic.

Answer: Function isEven(number) { if (number % 2 == 0) { return true; } else { return false; } }

Question 11: Complete the truth table for an XOR gate with inputs A and B and output C.

Answer: A | B | C ---|---|--- 0 | 0 | 0 0 | 1 | 1 1 | 0 | 1 1 | 1 | 0