Test Your Programming Skills

What is an algorithm?

• A type of computer hardware.

• A random guess without any steps.

• An algorithm is a step-by-step procedure for solving a problem.

• A recipe for cooking a meal.

Which of the following is a common sorting algorithm?

• Bubble Sort

• Merge Sort

• Insertion Sort

• Quick Sort

Write a function in Python that returns the square of a number.

• def square(num): return num + num

• def square(num): return num * num

• def square(num): return num ** 3

• def square(num): return num - num

What does the following code do: `for i in range(5): print(i)`?

• It prints the numbers 0, 1, 2, 3, 4, and 5, each on a new line.

• It prints the numbers 0 through 4 in a single line.

• It prints the numbers 1 to 5, each on a new line.

• It prints the numbers 0, 1, 2, 3, and 4, each on a new line.

What is the purpose of a function in programming?

• To handle errors in the code.

• The purpose of a function is to encapsulate code for reuse and organization.

• To store data permanently in memory.

• To create user interfaces for applications.

How do you define a function in JavaScript?

• define myFunction(param1, param2) => { // function body }

• function myFunction(param1, param2) { // function body }

• myFunction(param1, param2) { // function body } function

• function: myFunction(param1, param2) { // function body }

What is the output of the following code: `print(2 + 3 * 4)`?

• 10

• 5

• 14

• 20

Explain the difference between a list and a dictionary in Python.

• A list is an ordered collection of items accessed by index, while a dictionary is an unordered collection of key-value pairs accessed by keys.

• A list is accessed by keys, while a dictionary is accessed by index.

• A list is a collection of key-value pairs, while a dictionary is an ordered collection of items.

• A list can only contain strings, whereas a dictionary can contain any data type.

What is a loop, and why is it used in programming?

• A loop is a type of variable used to store data.

• A loop is a programming construct that allows code to be executed repeatedly based on a condition.

• A loop is a method for organizing files in a directory.

• A loop is a function that only runs once.

Write a simple function that checks if a number is even or odd.

• function oddOrEven(num) { return num % 2; }

• function isEvenOrOdd(num) { return num % 2 === 0 ? 'Even' : 'Odd'; }

• function checkNumber(num) { return num / 2; }

• function isEven(num) { return num % 2 !== 0; }