{
  "slug": "http-keepalive",
  "name": "Http Keepalive",
  "description": "",
  "tags": [
    "Connection头",
    "HTTP/1.0",
    "HTTP/1.1",
    "HTTP/2",
    "HTTP/3",
    "HTTP头",
    "HTTP演进",
    "Keep-Alive",
    "Keep-Alive参数",
    "RST",
    "TCP",
    "max",
    "timeout",
    "串行",
    "内存",
    "利弊",
    "并发连接",
    "文件描述符",
    "服务器",
    "权衡",
    "浏览器",
    "空闲连接",
    "连接关闭",
    "连接模型",
    "队头阻塞",
    "默认行为"
  ],
  "difficulty_range": [
    2,
    4
  ],
  "schema_version": "1.0.0",
  "updated": "2026-09-02",
  "question_files": [
    "single_choice",
    "fill_blank"
  ],
  "stats": {
    "total": 20,
    "by_type": {
      "single_choice": 10,
      "fill_blank": 10
    }
  }
}