【简答题】A student and his teacher were walking through the forest. The student was disturbed(扰乱) by the fact that his mind was in constant unrest(不安). He asked his teacher, “Why most people’s minds are restle...
【单选题】域名WWW.SINA.COM.CN中的 COM在此为( )级域名。
【简答题】请问,分别对于 , 而言,u,i是否是关联的参考方向?ui意味着什么功率?
【单选题】主机域名WWW.sina.com.cn中的com表示 【 】
【单选题】在RHEL5系统中,使用nslookup命令查询域名www.sina.com.cn,看到如下的显示结果。则下列说法错误的是( )。 [root@localhost ~]# nslookup www.sina.com.cn Server: gjjline.bta.net.cn Address: 202.106.0.20 Non-authoritative answer: Name: jupite...
A.
客户端查询时使用的DNS服务器地址是202.106.0.20
B.
202.106.0.20是sina.com.cn域的权威DNS服务器的地址
C.
域名www.sina.com.cn是jupiter.sina.com.cn的别名
D.
域名www.sina.com.cn对应的IP地址是202.108.33.32
【单选题】域名www.sina.com.cn 中的“com”代表的组织机构类型为( )。