HUB的主要作用是()。A、信息隔离、防火墙B、信号转换C、接收并放大信号D、代理
HUB的主要作用是()。
- A、信息隔离、防火墙
- B、信号转换
- C、接收并放大信号
- D、代理
相关考题:
单选题You install a new Exchange server 2010 organization that contains two Hub Transport servers named Hub1 and Hub2.Hub1 and Hub2 are configured as mail servers for your organization in the public DNS zone. You notice that Hub2 rejects all SMTP connections from internet hosts. What Should you do?()AUninstall the antispam agents from Hub1.BInstall the same trusted public certificate on Hub1 and Hub2.CModify the permissions for the Client Hub2 Receive connector.DModify the permissions for the Default Hub2 Receive connector.
单选题在化学沉铜溶液中,EDTA-2Na主要作用是()。A提供碱性介质B作还原剂C作络合剂D作氧化剂