Your company has a main office a

单项选择题Your company has a main office and 15 branch offices. The company has a single Active Directory domain. All servers run Windows Server 2008 R2.You need to ensure that the VPN connections between the main office and the branch offices meet the following requirements: ˆAll data must be encrypted by using end-to-end encryption. ˆ The VPN connection must use computer-level authentication. ˆ User names and passwords cannot be used for authentication. What should you do？（）: A、Configure an IPsec connection to use tunnel mode and preshared key authentication.; B、Configure a PPTP connection to use version 2 of the MS-CHAP v2 authentication.; C、Configure a L2TP/IPsec connection to use the EAP-TLS authentication.; D、Configure a L2TP/IPsec connection to use version 2 of the MS-CHAP v2 authentication.

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