在Windows客户端运行nslookup命令，结果如下图所示。为www.softwaretest.com提供解析的是（ ）。在DNS服务器中，ftp.softwaretest.com记录通过（ ）方式建立。
问题1选项
A.192.168.1.254
B.10.10.1.3
C.10.10.1.1
D.192.168. 1.1
问题2选项
A.主机
B.别名
C.邮件交换器
D.PIR记录
正确答案及解析
正确答案
解析
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