You have a single Active Directory directory service domain with three sites named Site1，Site2，and Site3. There are site links between all three sites，and replication between sites occurs every 30 minutes. You need to ensure that all replication traffic is routed through Site2. What should you do？（） Define a preferred bridgehead server for Site2.。 Reduce the interval between replications between Site1 and Site2 and between Site2 and Site3.。 Decrease the cost of the site link between Site1 and Site3.。 Increase the cost of the site link between Site1 and Site3.。
Your network contains an Active Directory forest. The forest contains two domains. You have a standalone root certification authority （CA）. On a server in the child domain， you run the Add Roles Wizard and discover that the option to select an enterprise CA is disabled. You need to install an enterprise subordinate CA on the server. What should you use to log on to the new server（） an account that is a member of the Certificate Publishers group in the child domain。 an account that is a member of the Certificate Publishers group in the forest root domain。 an account that is a member of the Schema Admins group in the forest root domain。 an account that is a member of the Enterprise Admins group in the forest root domai。
数据的逻辑组织形式有（） 顺序组织、直接组织、链表组织。 链表组织、树型组织、直接组织。 顺序组织、树型组织、网状组织。 网状组织、树型组织、链表组织。
数据库的数据模型是指（） 数据项之间的联系形式。 记录型之间的联系形式。 文件之间的联系形式。 数据之间的联系形式。
临界温度高于65℃的气体为（）。 溶解气体。 永久气体。 高压液化气体。 低压液化气体。
强调迁移就是心理官能发展的结果，这一理论是（）
