{
  "id": "03",
  "content": [
    {
      "type": "heading",
      "text": "A and AAAA Records: Pointing to IP Addresses"
    },
    {
      "type": "text",
      "html": "An <code>A</code> record points a name to an IPv4 address. An <code>AAAA</code> record points a name to an IPv6 address. These are common records for root domains and direct hosting setups."
    },
    {
      "type": "text",
      "html": "IP addresses can change when hosting changes. If the DNS still points to the old address, visitors may reach the wrong server or see downtime."
    },
    {
      "type": "callout",
      "style": "info",
      "html": "<strong>Practice:</strong> Document which host owns each IP address. Do not paste random IPs into DNS without knowing the service they belong to."
    }
  ],
  "quiz": {
    "questions": [
      {
        "id": "q1",
        "type": "single",
        "text": "What does an A record point to?",
        "options": [
          {
            "id": "a",
            "text": "An IPv4 address"
          },
          {
            "id": "b",
            "text": "A marketing slogan"
          },
          {
            "id": "c",
            "text": "A password manager vault"
          }
        ],
        "correct": [
          "a"
        ]
      },
      {
        "id": "q2",
        "type": "single",
        "text": "What does an AAAA record point to?",
        "options": [
          {
            "id": "a",
            "text": "An IPv6 address"
          },
          {
            "id": "b",
            "text": "A CSS class only"
          },
          {
            "id": "c",
            "text": "A social media profile only"
          }
        ],
        "correct": [
          "a"
        ]
      }
    ]
  }
}