Start of repeated scenarioYou are an enterprise desktop support technician for City Power & Light. City Power & Light is a utility company. The company has a main office and a branch office. The main office is located in Toronto. The branch office is located in Boston. The main office has 1,000 employees. The branch office has 10 employees. Active Directory ConfigurationThe network contains a single Active Directory domain named cpandl.com. The functional level of the forest is Windows Server 2008 R2. Server ConfigurationAll servers run Windows Server 2008 R2. The relevant servers in the main office are configured as shown in the following table.
All computers in the main office are configured to use DHCP. All computers in the branch office are configured to use static IP addresses. User InformationAll user accounts are standard user accounts.All client computers run Windows 7 Enterprise.Each portable computer has a PPTP-based VPN connection to the internal network. Corporate Security GuidelinesAll users must be granted the least privileges possible.All locally stored documents must be encrypted by using Encrypting File System (EFS).The hard disk drives on all portable computers must be encrypted by using Windows BitLocker Drive Encryption (BitLocker).All encryption certificates must be stored on smart cards. End of repeated scenario Several mobile users access the Internet by using cellular connections. The help desk reports a high volume of calls from mobile users who report the following connection problems. When their cellular connections fail, their VPN connections also fail.When their cellular connections are reestablished, they must manually connect to the VPN server. You need to recommend a solution to ensure that the VPN connections are automatically reestablished. What should you recommend?
A.
Implement an IKEv2 VPN.
B.
Implement an SSTP-based VPN.
C.
Configure credential roaming.
D.
Configure a Kerberos user ticket lifetime.