在Ubuntu Linux中,查看apache2服务器的状态的命令是( )。 A: systemctl status <br/>apache B: systemctl status <br/>apache2 C: systemctl apache <br/>status D: systemctl apache2<br/>status

【填空题】var status = 1; var msg; (status == 1) { msg = "Online"; } if (status == 2) { msg = "Away"; } { msg = "Offline"; }

启动Apache服务器的命令是（） A: systemctl start httpd.service B: systemctl restart httpd.service C: systemctl status httpd.service D: systemctl stop httpd.service

apache服务器的启动服务命令是() A: service httpd  stop B: service httpd restart C: service httpd status D: service httpd start

网关启动后,设备携带设备标识和传输密钥接入NLECloud,NLECloud对其鉴权确认合法性后,返回什么信息( )? A: {"t":2, "status":0} B: {"t":2, "status":1} C: {"t":3, "status":0} D: {"t":3, "status":1}

Apache服务器配置(1)查看系统是否安装Apache服务器(2)更新Apache软件包(3)关闭防火墙并设置selinux(4)编辑网页文件，在文件中体现学号和姓名(5)启动Apache服务(6)浏览网页，测试服务器

启动zookeeper后，下面哪个命令用于查看节点状态 A: zookeeper status B: zkServer.sh status C: hbase status D: egion status

一、单项选择（Single choice）（2 points per question，14 points total）The research object of social medicine is ( ) A: Social health status and its changing laws B: Socio-economic status and its changing laws C: Health policy development D: Law of social development E: Personal health status

status

Apache中虚拟主机的类型有几种？ A: 0 B: 1 C: 2 D: 3