题目内容：
Your company has a main office and a branch office.In the main office, you have a server named Server1 that runs Windows Server Update Services (WSUS) 3.0.Server1 is the only WSUS server in the company.You plan to deploy WSUS 3.0 on a server named Server2 in the branch office.You need to configure WSUS on Server2 to meet the following requirements:·Receive update approvals from Server1.·Prevent the modification of update approvals on Server2.·Allow administrators to monitor updates, monitor computer status, and configure a synchronization schedule onServer2.How should you configure Server2? （）A. to use a proxy server
B. as a replica of Server1
C. as a stand-alone WSUS 3.0 server
D. as an autonomous downstream server
参考答案：