[单选]

TestKing has five regional offices that are located in different cities. The IT staff is evaluating WAN technologies to interconnect the regional offices to corporate headquarters. Each of the regional offices should be connected to the corporate headquarters in a hub and spoke arrangement using a packet-switched technology.
Which of the following WAN technologies will fulfill these requirements?（）

信息系统的生命周期可以划分为五个阶段：系统的（）、（）、设计、实施、运行与维护。 某项目建设期内第1年贷款2000万元，第2年贷款920万元，贷款在每年内均衡发放，年利率4%，则建设期应计利息（）万元。 40。 100。 112。 140。 损伤程度鉴定的依据？ You have an Exchange Server 2010 organization.The organization contains two Mailbox servers named Server1 and Server2.Both servers are members of a database availability group （DAG）.A mailbox database named DB1 has a copy on Server1 and Server2.You need to ensure that Server2 waits three days before applying transaction log files from Server1 to DB1.What should you run？（） Set-MailboxDatabaseCopy -Identity DB1\Server1 -ReplayLagTime 3.0：0：0。 Set-MailboxDatabaseCopy -Identity DB1\Server1 -TruncationLagTime 3.0：0：0。 Set-MailboxDatabaseCopy -Identity DB1\Server2 -ReplayLagTime 3.0：0：0。 Set-MailboxDatabaseCopy -Identity DB1\Server2 -TruncationLagTime 3.0：0：0。 我国的人民代表大会制度是：（） 我国的国体。 我国的政体。 我国的根本政治制度。 我国的行政管理体制。 我国的一项基本政治制度。

TestKing has five regional offices that are located in different cities. The IT staff is evaluating WAN technologies to interconnect the regional offices to corporate headquarters. Each of the regional offices should be connected to the corporate headquarters in a hub and spoke arrangement using a packet-switched technology.
Which of the following WAN technologies will fulfill these requirements?（）