{
    "questions": [
      {
        "id": "1",
        "category": "C++",
        "type": "quiz",
        "question": "What is the output of the following code: std::cout << sizeof(int);",
        "answer": "The output depends on the system, typically 4 on most systems."
      },
      {
        "id": "2",
        "category": "geography",
        "type": "quiz",
        "question": "What is the capital of France?",
        "answer": "Paris"
      },
      {
        "id": "3",
        "category": "cybersecurity",
        "type": "true or false",
        "question": "A firewall can protect a network from all types of cyber attacks.",
        "answer": "false"
      },
      {
        "id": "4",
        "category": "C++",
        "type": "true or false",
        "question": "C++ supports multiple inheritance.",
        "answer": "true"
      },
      {
        "id": "5",
        "category": "geography",
        "type": "quiz",
        "question": "Which is the largest continent by land area?",
        "answer": "Asia"
      },
      {
        "id": "6",
        "category": "cybersecurity",
        "type": "quiz",
        "question": "What does the acronym 'DDoS' stand for?",
        "answer": "Distributed Denial of Service"
      },
      {
        "id": "7",
        "category": "C++",
        "type": "quiz",
        "question": "Which C++ standard introduced the concept of 'auto' keyword?",
        "answer": "C++11"
      },
      {
        "id": "8",
        "category": "geography",
        "type": "true or false",
        "question": "The Amazon River is the longest river in the world.",
        "answer": "false"
      },
      {
        "id": "9",
        "category": "cybersecurity",
        "type": "quiz",
        "question": "What is the main purpose of encryption?",
        "answer": "To protect data confidentiality by converting it into a code."
      },
      {
        "id": "10",
        "category": "C++",
        "type": "quiz",
        "question": "What is the function of the 'virtual' keyword in C++?",
        "answer": "It allows a member function to be overridden in a derived class."
      }
    ]
  }