A.用于自动创建网站默认主页
B.是网站的子配置文件，默认为空
C.当访问网站出现错误时，自动加载一个测试页面
D.为访问网站的用户提供欢迎消息

A.index.asp
B.index.htm
C.index.php
D.index.html

A./var/html
B./var/www/html
C./etc/html
D./etc/www

A./etc/www
B./var/www
C./etc/httpd
D./var/httpd

A.重试时间retry
B.过期时间expire
C.刷新时间refresh
D.生存时间TTL

A.邮箱符号
B.本 区域
C.本机IP
D.主机名

A./chroot/var/named
B./var/named/chroot
C./var/named/
D./var/named/chroot/var/named

A./var/named/chroot/etc
B./chroot/etc
C./etc
D./etc/var/named

A.25
B.67
C.23
D.53

A./etc/localhost
B./etc/hosts
C./etc/hostname
D./etc/resolv

A.default-time
B.option default-lease-time
C.default-lease-time
D.option default-time