1. 认真阅读以下说明信息,回答问题1-5。(每小题3分,共15分)
说明:若设置域名解析服务器,已知该文件服务器上文件/etc/named.conf的部分内容如下:
options { directory /var/named; };
…….
zone “163.com” IN {
type master;
file “163.com.zone”;
};
zone “19.16.202.in-addr.arpa” IN {
type master;
file “202.16.19.zone”;
};
zone “sina.com” IN {
type slave;
file “sina.com.zone”;
masters { 202.16.19.2; };