CCNA

Quiz Test – Common Network Port Numbers

`; } else { resultHTML = ` `; } // Add explanations shuffledQuestions.forEach((q, index) => { const explanationDiv = document.querySelectorAll('.explanation')[index]; explanationDiv.innerHTML = `

Explanation: ${q.explanation}

`; }); resultDiv.innerHTML = resultHTML; } function submitQuiz() { // Validate all questions answered let allAnswered = true; shuffledQuestions.forEach((q, index) => { const answered = document.querySelectorAll(`input[name="q${index}"]:checked`).length > 0; if (!answered) { allAnswered = false; document.querySelector(`#q${index}`).style.backgroundColor = '#fff3cd'; } }); if (!allAnswered) { alert('Please answer all questions before submitting!'); return; } // Disable inputs document.querySelectorAll('input').forEach(input => input.disabled = true); document.querySelectorAll('.question').forEach(q => q.classList.add('disabled')); // Calculate and display results const score = calculateScore(); showResults(score); } // Initialize quiz createQuiz();